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EP0636551B1 - Behälterverschluss mit Sicherheitsring - Google Patents

Behälterverschluss mit Sicherheitsring Download PDF

Info

Publication number
EP0636551B1
EP0636551B1 EP93111110A EP93111110A EP0636551B1 EP 0636551 B1 EP0636551 B1 EP 0636551B1 EP 93111110 A EP93111110 A EP 93111110A EP 93111110 A EP93111110 A EP 93111110A EP 0636551 B1 EP0636551 B1 EP 0636551B1
Authority
EP
European Patent Office
Prior art keywords
cover
closure
container
ring
skirt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93111110A
Other languages
English (en)
French (fr)
Other versions
EP0636551A1 (de
Inventor
Michel Delatour
Jean Servaux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe des Produits Nestle SA
Nestle SA
Original Assignee
Societe des Produits Nestle SA
Nestle SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ES93111110T priority Critical patent/ES2088806T3/es
Application filed by Societe des Produits Nestle SA, Nestle SA filed Critical Societe des Produits Nestle SA
Priority to DK93111110.8T priority patent/DK0636551T3/da
Priority to AT93111110T priority patent/ATE137715T1/de
Priority to DE69302577T priority patent/DE69302577T2/de
Priority to EP93111110A priority patent/EP0636551B1/de
Priority to AU64739/94A priority patent/AU685101B2/en
Priority to US08/265,323 priority patent/US5667087A/en
Priority to CA002127007A priority patent/CA2127007A1/en
Publication of EP0636551A1 publication Critical patent/EP0636551A1/de
Application granted granted Critical
Publication of EP0636551B1 publication Critical patent/EP0636551B1/de
Priority to GR960402018T priority patent/GR3020660T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3438—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being formed separately but connected to the closure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics

Definitions

  • the invention relates to a threaded closure for a container, comprising a safety ring secured to a cover that can be fixed to the neck of the container, said cover comprising a bottom and a side skirt, the internal wall of which includes ramps forming a thread and intended to cooperate with corresponding closing ramps mounted on the external part of the container neck, in which the safety ring has a lower edge pressing against the lower edge of the skirt of the cover.
  • the invention also relates to a snap-on closure for a container and to the safety ring used in the two above-mentioned closures.
  • Patent WO 91/01925 relates to a wide-neck container closure comprising a cover with safety ring, said closure being mounted on the neck of said container.
  • the principle of this closure and inviolability system is based on the fact that when the container is opened, the widening of the skirt of the closure cover deforms the safety ring, integral with said skirt, which thus breaks following breaking points. There is thus a simple and sure way to show, if a container has been opened.
  • the disadvantage of this system is that it is intended for square jars, in which the breaking of the safety ring takes place thanks to the deformation of the skirt of the cover or for round jars, which must then include bosses unlocking. If we consider a round jar, which does not have unlocking bosses on the neck of the container to deform the skirt of the cover, we must find a solution based on another principle.
  • the object of the present invention is the development of a system making it possible to visually demonstrate whether a container with a screwable or snap-on lid has been opened.
  • the invention relates to a threaded closure for a container according to the preamble of claim 1, in which the safety ring comprises at least one locking tab and at least two latching tabs, the locking tab pressing in the closed position of the cover. against a rim of the container neck located under the closing ramps and the latching lug being locked on a circular groove provided in the lower inner part of the cover skirt and in which the latching and latching lugs are distributed alternately around the edge of the ring.
  • the cover is preferably round cooperating with a round neck.
  • the safety ring includes a collar secured to the edge and matching the shape of the lower outer wall of the skirt of the cover. This flange makes the ring more solid during handling.
  • the safety ring is a single piece and can be manufactured by injection molding in a brittle material which is preferably based on polystyrene.
  • the cover is made separately from the safety ring.
  • Said ring has such a configuration that the rings can be stacked, which saves space. These rings can be delivered alone or already mounted on the cover. A recess must be provided inside the skirt to provide sufficient space for the thickness of the locking and latching tabs when the lid is screwed onto the container.
  • the safety ring breaks and the fragments leave well towards the outside. This has the advantage that the ring, after first opening, is no longer on the container, which gives a conventional packaging.
  • the container is preferably made of glass with different neck diameters.
  • the cover is a conventional cover comprising for example four locking ramps, just as there are then provided on the rim of the jar the four corresponding ramps.
  • This cover is preferably made of polyethylene or polypropylene.
  • the inner part of the bottom of the cover has either a cardboard box, or a foam cardboard (expanded polyethylene) weldable by induction, or a sealing ring deposited in the pasty state and which polymerizes in the open air, or a barrier foam.
  • the locking and latching tabs are integral with the lower edge of the safety ring, these tabs projecting diagonally towards the inside of the lid and towards the top of the container.
  • the aforementioned tabs are tabs with recesses for reasons of elasticity, the locking tab being normally longer than the latching tab.
  • the length of the locking tab depends on the distance from the bottom of the skirt of the lid to the rim of the container neck.
  • the number of locking and latching tabs is decisive in ensuring good breakage of the safety ring. It is preferable to operate each time with three of these legs. It is understood that these tabs are normally distributed around the periphery of the ring in an alternative manner, that is to say a locking tab, a latching tab, a locking tab and so on. This arrangement is not, however, essential to properly have a breaking tension on the ring. If the tabs are distributed evenly, with three locking tabs, these make an angle between them of 120 ° in the plane, the same for the snap tabs.
  • ring areas of weakness can be formed by notches which can be given either the shape of U, or the shape of V, the main being to create around the circumference of the ring zones of lesser thickness or less width with zones of preferential breaks.
  • the safety ring comprises between each locking and latching tab at least one notch forming a weakening zone for said ring, the locking tab then being formed by a tongue.
  • each locking tab is formed of two tabs, a weakening zone being provided between said tabs.
  • the latching tabs each have a retaining notch which engages on the circular groove in the interior lower part of the skirt of the cover. This guarantees total locking of the safety ring on the cover.
  • the invention also relates to a snap-on closure for a container comprising a safety ring secured to a cover that can be fixed to the neck of the container, said cover comprising a bottom and a side skirt, the inner wall of which comprises hooking means provided for cooperate with a rim on the inside of the container neck, in which the safety ring has a lower edge pressing against the lower edge of the cover skirt and comprising at least one locking tab and at least two tabs latching, the locking tab pressing in the closed position of the lid against the rim on the outside of the container neck and the latching lug being locked on a notch provided in the lower inner part of the skirt of the lid and in which the lugs locking and latching are distributed alternately around the periphery of the ring.
  • the safety ring preferably has two locking tabs and two tabs latching.
  • the cover is advantageously square in shape and the neck of the container is round.
  • the invention finally relates to the safety ring used for the closure described above, comprising an edge comprising at least one locking tab and at least two snap tabs. All that has been described above for this ring remains valid, in particular it may include a collar secured to the edge.
  • the safety ring (1) has a collar (2) and a lower edge (3).
  • the locking tabs (4) and the latching tabs (5) are integral with the lower edge. These tabs each have recesses respectively (6) and (7) so as to give them good elasticity.
  • the weakened areas (8) are arranged between the locking and latching tabs.
  • the ring is made of polystyrene.
  • Fig. 2 shows a partial section of the container lid.
  • This cover (9) has a bottom (10) and a side skirt (11).
  • the internal part of the bottom of the cover has an area (12) for putting a cardboard there (not shown). This would be held in place by the circular notch (13).
  • the internal part of the side skirt has closing ramps (14) and a circular groove (15).
  • FIGS. 3 and 4 clearly show the combination of the elements of FIGS. 1 and 2.
  • the container to be closed (16) has a neck (17) on which the cover (9) secured to the safety ring (1) is screwed.
  • the closing ramps (14) of the cover cooperate with corresponding closing ramps (18) of the neck of the container (16).
  • the cardboard (19) in the lid presses against the upper edge of the container neck.
  • the safety ring (1) is locked on the skirt of the cover by means of the latching tabs (5) comprising retaining tabs (20) which engage on the circular groove (15) of the skirt of the cover.
  • the locking tabs (4) of the ring abut against a flange (21) of the neck of the container.
  • notches (22) are provided: in the present case six notches giving these places zones of reduced thickness of the safety ring. The more you lift or unscrew the cover, the more tension increases to break the ring in these weakened areas. In this case, we made notches in the shape of a U. We thus have a system allowing to say in a sure way if the container has been opened: indeed, if really the ring is broken, there will frequently be a fragment ring that will have disappeared and the consumer will instantly judge if the container has been opened.
  • the safety ring (23) of FIG. 6 differs from that of the Fig. 1 only in the locking tabs (24) made in this case of two identical tabs (25) and in that the weakening zone (26) is located between these two tabs and no longer between the locking tabs and snap-in.
  • the other elements have been given the same reference numbers.
  • the safety ring will undergo the same tensions for the same reasons as above, but the ring will break according to the 3 weakening points (26).
  • Fig. 7 differs from FIG. 6 simply in that the safety ring does not include a collar (22). But the breaking of said ring will be done as for the ring of FIG. 6 in (26).
  • Fig. 8 shows a safety ring (30) for snap-on cover. It includes, as for the screwable covers, a lower edge (31) carrying locking tabs (32) made up of two identical tabs (33) and snap-on tabs (34). The weakening zone (35) is located between the two aforementioned tabs.
  • the only difference with the previous figure is in the geometric shape of the safety ring: for the screwable cover, it is round and for the snap-on cover it is square.
  • the advantage of the closure system according to the invention is that it makes it possible to keep the containers and the lids already existing. It is simply necessary to consider the manufacture of the safety ring which is then placed on the cover. The container itself being also filled and sealed, it only remains to cap said container of the closure system according to the invention.
  • This device finds a particularly interesting application on containers containing soluble coffee, milk powder and other food products.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Claims (12)

  1. Behälterverschluß mit Gewinde und einem Sicherheitsring (1), der mit einem Deckel (9) fest verbunden ist, der auf dem Hals (17) des Behälters befestigt werden kann und einen Boden (10) und einen seitlichen Mantel (11) aufweist, dessen Innenwand Verschlußrampen (14) aufweist, die ein Gewinde bilden und zum Zusammenwirken mit entsprechenden, auf dem Außenteil des Behälterhalses montierten Verschlußrampen (18) vorgesehen sind, wobei der Sicherheitsring (1) einen sich an der Unterkante des Mantels des Deckels abstützenden unteren Bord (3) besitzt, dadurch gekennzeichnet, daß dieser Sicherheitsring (1) mindestens einen Verriegelungslappen (4) und mindestens zwei Einrastlappen (5) aufweist, wobei der Verriegelungslappen (4) sich in der geschlossenen Stellung des Deckels an einer unter den Verschlußrampen angeordneten Leiste (21) des Behälterhalses abstützt und der Einrastlappen (5) auf einer im unteren inneren Teil des Mantels des Deckels vorgesehenen kreisförmigen Nut (15) verriegelt ist, und daß die Verriegelungs- und Einrastlappen (4, 5) auf dem Umfang des Rings (1) abwechselnd verteilt sind.
  2. Verschluß mit Gewinde nach Anspruch 1, dadurch gekennzeichnet, daß der Sicherheitsring (1) einen mit dem unteren Bord (3) fest verbundenen Kragen (2) aufweist, der an die Form der unteren Außenwand des Mantels (11) des Deckels angepaßt ist.
  3. Verschluß mit Gewinde nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Verriegelungs- und Einrastlappen (4, 5) schräg nach innen und oben hervorstehen.
  4. Verschluß mit Gewinde nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß jeder Verriegelungs- und Einrastlappen (4, 5) von mindestens einer Zunge gebildet ist, wobei die Verriegelungszunge länger als die Einrastzunge ist.
  5. Verschluß mit Gewinde nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sicherheitsring (1) drei Verriegelungslappen (4) und drei Einrastlappen (5) besitzt, die gleichmäßig auf seinen Umfang verteilt sind.
  6. Verschluß mit Gewinde nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Sicherheitsring zwischen jedem Verriegelungs- und Einrastlappen (4, 5) mindestens einen einen Schwächungsbereich für diesen Ring bildenden Einschnitt (8) aufweist, wobei der Verriegelungslappen von einer Zunge gebildet ist.
  7. Verschluß mit Gewinde nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß jeder Verriegelungslappen (4) von zwei Zungen (25) gebildet ist, wobei ein einen Schwächungsbereich bildender Einschnitt (26) zwischen diesen beiden Zungen vorgesehen ist.
  8. Verschluß mit Gewinde nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß jeder Einrastlappen (5) eine Rückhaltezunge (20) aufweist, die in die kreisförmige Nut (15) im unteren inneren Teil des Mantels (11) des Deckels eintritt.
  9. Verschluß nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Sicherheitsring (1) einstückig und auf Polystyrolbasis ist.
  10. Einrastbarer Behälterverschluß mit einem Sicherheitsring (30), der mit einem Deckel fest verbunden ist, der auf dem Hals des Behälters befestigt werden kann, wobei der Deckel einen Boden und einen seitlichen Mantel besitzt, dessen untere innere Wand Einhakmittel aufweist, die zum Zusammenwirken mit einer Leiste auf der Außenseite des Behälterhalses vorgesehen sind, wobei der Sicherheitsring einen unteren Bord (31) aufweist, der sich an der Unterkante des Mantels des Deckels abstützt, dadurch gekennzeichnet, daß dieser Sicherheitsring (30) mindestens einen Verriegelungslappen (32) und mindestens zwei Einrastlappen (34) aufweist, wobei der Verriegelungslappen (32) sich in der geschlossenen Stellung des Deckels an der Leiste an der Außenseite des Behälterhalses abstützt und der Einrastlappen (34) an einer im unteren Teil des Mantels des Deckels vorgesehenen Einrastung verriegelt ist, und daß die Verriegelungs- und Einrastlappen (32, 34) abwechselnd auf dem Umfang des Rings (30) verteilt sind.
  11. Sicherheitsring für den Verschluß nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß er einen Bord (3, 31) aufweist, der mindestens einen Verriegelungslappen (4, 32) und mindestens zwei Einrastlappen (5, 34) besitzt.
  12. Sicherheitsring nach Anspruch 11, dadurch gekennzeichnet, daß er einen mit dem Bord fest verbundenen Kragen (2) besitzt.
EP93111110A 1993-07-12 1993-07-12 Behälterverschluss mit Sicherheitsring Expired - Lifetime EP0636551B1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DK93111110.8T DK0636551T3 (da) 1993-07-12 1993-07-12 Beholderlukke med sikkerhedsring
AT93111110T ATE137715T1 (de) 1993-07-12 1993-07-12 Behälterverschluss mit sicherheitsring
DE69302577T DE69302577T2 (de) 1993-07-12 1993-07-12 Behälterverschluss mit Sicherheitsring
EP93111110A EP0636551B1 (de) 1993-07-12 1993-07-12 Behälterverschluss mit Sicherheitsring
ES93111110T ES2088806T3 (es) 1993-07-12 1993-07-12 Cierre para recipiente con aro de seguridad.
AU64739/94A AU685101B2 (en) 1993-07-12 1994-06-15 A closure for containers with a security ring
US08/265,323 US5667087A (en) 1993-07-12 1994-06-24 Closure and security ring for containers
CA002127007A CA2127007A1 (en) 1993-07-12 1994-06-29 Closure for containers with a security ring
GR960402018T GR3020660T3 (en) 1993-07-12 1996-07-31 Container closure with safety ring.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93111110A EP0636551B1 (de) 1993-07-12 1993-07-12 Behälterverschluss mit Sicherheitsring

Publications (2)

Publication Number Publication Date
EP0636551A1 EP0636551A1 (de) 1995-02-01
EP0636551B1 true EP0636551B1 (de) 1996-05-08

Family

ID=8213062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111110A Expired - Lifetime EP0636551B1 (de) 1993-07-12 1993-07-12 Behälterverschluss mit Sicherheitsring

Country Status (9)

Country Link
US (1) US5667087A (de)
EP (1) EP0636551B1 (de)
AT (1) ATE137715T1 (de)
AU (1) AU685101B2 (de)
CA (1) CA2127007A1 (de)
DE (1) DE69302577T2 (de)
DK (1) DK0636551T3 (de)
ES (1) ES2088806T3 (de)
GR (1) GR3020660T3 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303623B (en) * 1995-07-21 1999-03-31 U B Plastics Limited Tamper-evident cap
DK0773172T3 (da) * 1995-11-07 2000-11-06 Nestle Sa Hængslet lukke for en beholder
EP0787659A1 (de) * 1996-02-05 1997-08-06 Meili Projekt GmbH Verschlusskappe mit Garantieband
EP1007429B1 (de) 1996-04-12 2006-03-15 Gevaplast Schnappverschluss für bierfass
JP3990807B2 (ja) * 1998-04-07 2007-10-17 日本クラウンコルク株式会社 プラスチックキャップ
US6371317B1 (en) 1998-08-07 2002-04-16 Kerr Group, Inc. Tamper indicating closure with foldable tab
US7344039B2 (en) * 1998-08-07 2008-03-18 Berry Plastics Corporation Tamper indicating band having foldable tabs including tab extensions, tamper indicating closure including such tamper indicating band, and tamper indicating closure including such tamper indicating band and container
US6355201B1 (en) 2000-09-07 2002-03-12 Captive Plastics, Inc. Tamper-indicating closure with resilient locking projections
US7513377B1 (en) 2002-10-03 2009-04-07 Rexam Closures And Containers Inc. Folding finger tamper-indicating band arrester
US6739466B1 (en) * 2002-10-03 2004-05-25 Rexam Medical Packaging Inc. Folding finger tamper-indicating band arrester
KR100548988B1 (ko) * 2003-11-26 2006-02-02 학교법인 한양학원 리튬이차전지용 양극활물질 제조방법, 그 방법에 사용되는반응기 및 그 방법으로 제조되는 리튬이차전지용 양극활물질
FR2917070A1 (fr) * 2007-06-08 2008-12-12 Bericap Sarl Bouchon encliquetable et son procede de fabrication
RU2490188C2 (ru) * 2010-06-22 2013-08-20 Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") Герметичная тара
IT201600080146A1 (it) * 2016-07-29 2018-01-29 Guala Pack Spa Chiusura con sigillo di garanzia

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Publication number Priority date Publication date Assignee Title
US1655963A (en) * 1923-02-19 1928-01-10 Norlipp Company Radiator-locking cap
US2066390A (en) * 1934-07-13 1937-01-05 Armstrong Cork Co Closure for containers
FR52789E (de) * 1940-11-18
FR2290364A1 (fr) * 1974-11-08 1976-06-04 Astra Plastique Perfectionnements aux dispositifs d'obturation du type inviolable
US4371088A (en) * 1981-09-10 1983-02-01 Sunbeam Plastics Corporation Tamper indicating child resistant closure
EP0107680B1 (de) * 1982-04-23 1986-01-29 Cebal Kunststoffschraubkappe mit sicherheitsring
US4527701A (en) * 1984-08-29 1985-07-09 Owens-Illinois, Inc. Tamper indicating child resistant closure
US4643321A (en) * 1985-10-03 1987-02-17 Sunbeam Plastics Corporation Tamper indicating band for threaded cap
US4759456A (en) * 1986-10-31 1988-07-26 Owens-Illinois Closure Inc. Tamper-indicating package and plastic closure therefore
US4709823A (en) * 1987-02-05 1987-12-01 James M. Beck Tamper evident bottle or package closure
US4741447A (en) * 1987-04-27 1988-05-03 American National Can Company Linerless cap closure
GB8820353D0 (en) * 1988-08-26 1988-09-28 Staniforth J N Controlled release tablet
US4957211A (en) * 1989-07-11 1990-09-18 American National Can Company Vacuum-indicating closure
DE3925119A1 (de) * 1989-07-28 1991-01-31 Huebner Gmbh & Co Max Schraubverschluss fuer weithalsbehaelter, der mit einer orginalitaetssicherung versehen ist
FR2674823B1 (fr) * 1991-04-02 1993-07-16 Astra Plastique Bouchon a vis avec bague d'inviolabilite.

Also Published As

Publication number Publication date
AU685101B2 (en) 1998-01-15
US5667087A (en) 1997-09-16
GR3020660T3 (en) 1996-10-31
DE69302577T2 (de) 1996-09-12
DE69302577D1 (de) 1996-06-13
EP0636551A1 (de) 1995-02-01
AU6473994A (en) 1995-01-19
ES2088806T3 (es) 1996-09-16
DK0636551T3 (da) 1996-08-26
ATE137715T1 (de) 1996-05-15
CA2127007A1 (en) 1995-01-13

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