RO84020B - Procedeu pentru prepararea unor derivati de anilina substituita - Google Patents
Procedeu pentru prepararea unor derivati de anilina substituitaInfo
- Publication number
- RO84020B RO84020B RO106425A RO10642575A RO84020B RO 84020 B RO84020 B RO 84020B RO 106425 A RO106425 A RO 106425A RO 10642575 A RO10642575 A RO 10642575A RO 84020 B RO84020 B RO 84020B
- Authority
- RO
- Romania
- Prior art keywords
- halogen
- formula
- group
- alkyl
- alkoxy
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C335/00—Thioureas, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C335/30—Isothioureas
- C07C335/32—Isothioureas having sulfur atoms of isothiourea groups bound to acyclic carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Inventia se refera la un procedeu pentru prepararea compusilor cu formula generala I (vezi formula în pag.1 a descrierii) în care R1 reprezinta o grupa alchil C1...C4, alcoxi C1...C4 sau halogen, R2 reprezinta hidrogen sau halogen sau o grupa alchil C1...C3 sau alcoxi C1...C4, R4 reprezinta hidrogen sau halogen sau o grupa alchil C1...C3 sau alcoxi C1...C4, R5 reprezinta hidrogen sau metil, numarul total de atomi de carbon al substituentilor R1, R2, R4 si R5 în inelul fenil nedepasind însa cifra 8, Y reprezinta gruparea -O-R3 sau -S-R3 în care R3 este o grupa alchil C1...C6, alchenil C3...C6, alchinil C3...C6, eventual substituite cu un atom de halogen sau o grupa benzil, eventual substituita cu halogen sau cu o grupa alchil C1...C4, si anume, se acileaza un compus cu formula generala II (vezi formula în pag.1 a descrierii) cu un compus cu formula generala III: Hal-CO-CH2-Y în care R1...R5 si Y au semnificatiile indicate la formula I, iar Hal reprezinta halogen, de preferinta clor sau brom, la temperaturi între 0 si 180 degree C, de preferinta 20...120 degree C în prezenta unui solvent inert fata de reactanti, ales dintre benzen, toluen, xilen, eter de petrol, clorbenzen, clorura de metilen, clorura de etilen, cloroform, dialchileter, dioxan, tetrahidrofuran, acetonitril, dimetilformamida, dimetilsulfoxid, metilencetona sau amestecuri ale acestora sau, în absenta unui solvent, eventual în prezenta unui acceptor de acid sau unui agent de condensare, ales dintre trietilamina, piridina si baze piridinice sau baze anorganice ca oxizi si hidroxizi bicarbonati si carbonati de metale alcaline sau alcalinopamîntoase, acetat de sodiu sau în prezen
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH499574A CH592410A5 (en) | 1974-04-09 | 1974-04-09 | n-Substd. acetanilides - microbicides useful for treating phytopathogenic fungi, prepd. by acylation of substd. anilines |
CH325975A CH608690A5 (en) | 1975-03-14 | 1975-03-14 | Microbicidal composition |
Publications (2)
Publication Number | Publication Date |
---|---|
RO84020A RO84020A (ro) | 1984-05-12 |
RO84020B true RO84020B (ro) | 1984-06-30 |
Family
ID=25692584
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO106424A RO83787B (ro) | 1974-04-09 | 1975-04-09 | Compozitie fungicida |
RO106425A RO84020B (ro) | 1974-04-09 | 1975-04-09 | Procedeu pentru prepararea unor derivati de anilina substituita |
RO7581942A RO79678A (ro) | 1974-04-09 | 1975-04-09 | Compozitie fungicida |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO106424A RO83787B (ro) | 1974-04-09 | 1975-04-09 | Compozitie fungicida |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO7581942A RO79678A (ro) | 1974-04-09 | 1975-04-09 | Compozitie fungicida |
Country Status (33)
Country | Link |
---|---|
US (3) | US4294850A (ro) |
JP (1) | JPS5443573B2 (ro) |
AR (1) | AR226272A1 (ro) |
AT (1) | AT341827B (ro) |
BG (1) | BG26357A3 (ro) |
CA (1) | CA1059141A (ro) |
CS (1) | CS187468B2 (ro) |
CY (1) | CY1010A (ro) |
DD (2) | DD118979A5 (ro) |
DE (1) | DE2515091C2 (ro) |
DK (1) | DK142360B (ro) |
ES (1) | ES436385A1 (ro) |
FI (1) | FI61477C (ro) |
FR (1) | FR2267042B1 (ro) |
GB (1) | GB1500581A (ro) |
HK (1) | HK40379A (ro) |
HU (1) | HU173318B (ro) |
IE (1) | IE40913B1 (ro) |
IL (1) | IL47046A (ro) |
IT (1) | IT1049536B (ro) |
KE (1) | KE2960A (ro) |
LU (1) | LU72224A1 (ro) |
MY (1) | MY8000056A (ro) |
NL (1) | NL184781C (ro) |
NO (1) | NO144960C (ro) |
OA (1) | OA04979A (ro) |
PH (1) | PH13585A (ro) |
PL (2) | PL104373B1 (ro) |
RO (3) | RO83787B (ro) |
SE (1) | SE430015B (ro) |
SU (2) | SU730268A3 (ro) |
TR (1) | TR18846A (ro) |
YU (1) | YU37311B (ro) |
Families Citing this family (82)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
OA04979A (fr) * | 1974-04-09 | 1980-11-30 | Ciba Geigy | Nouveaux dérivés de l'aniline utiles comme agents microbicides et leur procédé de préparation. |
US4147792A (en) * | 1977-02-04 | 1979-04-03 | Ciba-Geigy Corporation | Fungicidal compositions |
CH627343A5 (en) * | 1977-03-28 | 1982-01-15 | Ciba Geigy Ag | Microbicide |
CH629939A5 (de) * | 1977-03-29 | 1982-05-28 | Ciba Geigy Ag | Mikrobizides mittel. |
AT368358B (de) * | 1977-12-24 | 1982-10-11 | Fisons Ltd | Schaedlingsbekaempfungs- und pflanzenwachstumsregulierungsmittel |
DE2802211A1 (de) | 1978-01-19 | 1979-07-26 | Basf Ag | N-substituierte 2,6-dialkylaniline und verfahren zur herstellung von n- substituierten 2,6-dialkylanilinen |
BG28977A3 (en) * | 1978-02-02 | 1980-08-15 | Montedison Spa | Fungicide means and method for fungus fighting |
CS217978B2 (en) * | 1978-04-01 | 1983-02-25 | Lilly Industries Ltd | Fungicide means |
CH635313A5 (de) * | 1978-05-19 | 1983-03-31 | Ciba Geigy Ag | Pflanzenmikrobizid wirkende hydrazino-acetanilid-derivate, verfahren zu ihrer herstellung sowie mikrobizide mittel mit diesen praeparaten als wirkstoffe. |
CH635819A5 (de) * | 1978-06-02 | 1983-04-29 | Ciba Geigy Ag | Alkoxy-alkoxy-acetyl acylalanine, deren herstellung und verwendung als pflanzenfungizide. |
CH637368A5 (de) * | 1978-10-27 | 1983-07-29 | Ciba Geigy Ag | Anilinderivate und daraus hergestellte schaedlingsbekaempfungsmittel. |
CH641760A5 (de) * | 1978-11-27 | 1984-03-15 | Ciba Geigy Ag | Schaedlingsbekaempfungsmittel. |
CH639940A5 (en) * | 1978-12-05 | 1983-12-15 | Ciba Geigy Ag | Substituted N-alkoxycarbonylethyl-N-acylanilines, microbicides containing them, and process for the preparation of the compounds |
DE2948734A1 (de) * | 1978-12-07 | 1980-06-19 | Ciba Geigy Ag | Schaedlingsbekaempfungsmittel |
FR2447373A1 (fr) * | 1979-01-24 | 1980-08-22 | Rhone Poulenc Agrochimie | Produits derives de l'aniline ayant une activite antifongique ainsi que leur procede de preparation |
FR2451914A1 (fr) * | 1979-03-20 | 1980-10-17 | Ciba Geigy Ag | Composes aromatiques azotes possedant des proprietes microbicides |
CH639643A5 (en) * | 1979-03-21 | 1983-11-30 | Ciba Geigy Ag | Pesticides |
MA18800A1 (fr) * | 1979-04-10 | 1980-12-31 | Ciba Geigy Ag | Naphtylamines acylees,procede pour leur preparation et leur application comme phytofongicides |
DE2915026A1 (de) * | 1979-04-12 | 1980-10-30 | Bayer Ag | N,n-disubstituierte ethylglycin (thiol)ester, verfahren zu ihrer herstellung sowie ihre verwendung als fungizide |
DE2917914A1 (de) * | 1979-05-03 | 1980-11-13 | Ciba Geigy Ag | N-(alkoxy- bzw. alkoxycarbonylalkyl)- n-alkoxyalkoxyacetyl-anilin-derivate |
DE2917893A1 (de) * | 1979-05-03 | 1980-11-13 | Ciba Geigy Ag | N-(alkoxy- bzw. alkoxycarbonalalkyl)- n-hydroxyacetyl- bzw. propionyl-anilin- derivate als pflanzenfungizide |
ES8104796A1 (es) * | 1979-07-25 | 1981-05-16 | Hoechst Ag | Procedimiento para la preparacion de anilidas de acido tio- glicolico, fungicidas |
EP0025019B1 (de) * | 1979-08-29 | 1983-02-09 | Ciba-Geigy Ag | Sulfinyl- und Sulfonylacetanilide, Verfahren zu deren Herstellung und deren Verwendung als Mikrobizide |
MA19111A1 (fr) * | 1979-10-26 | 1981-12-31 | Ciba Geigy Ag | Derives de l'homoserine,procede pour leur preparation et leur utilisation en tant que microbicides |
DE2946910A1 (de) * | 1979-11-21 | 1981-07-02 | Hoechst Ag, 6230 Frankfurt | Fungizide sulfonyl-, bzw. sulfinylacetanilide |
MA19215A1 (fr) * | 1980-07-25 | 1982-04-01 | Ciba Geigy Ag | Nouveaux derives arylamines,procede pour leur fabrication et utilisation en tant que microbicides . |
US4377587A (en) * | 1980-07-25 | 1983-03-22 | Ciba-Geigy Corporation | Arylamine derivatives and use thereof as microbicides |
US4448773A (en) * | 1981-04-29 | 1984-05-15 | Ciba-Geigy Corporation | Microbicidal N-alkoxycarbonyl-alkyl-N-substituted acetyl-anilines and -naphthylamines |
FR2505327A1 (fr) * | 1981-05-08 | 1982-11-12 | Rhone Poulenc Agrochimie | Procede d'halogenation en meta de n-(o,o'-dialkyl phenyl) alaninates et homologues |
FR2513993A1 (fr) * | 1981-10-06 | 1983-04-08 | Rhone Poulenc Agrochimie | Nouveaux fongicides homologues des n-phenyl alaninates et leur procede de preparation et leur application |
US4742079A (en) * | 1982-01-26 | 1988-05-03 | Sandoz Ltd. | Fungicides containing cymoxanil and metalaxyl |
CH654979A5 (de) * | 1982-01-26 | 1986-03-27 | Sandoz Ag | Fungizide und ihre verwendung. |
EP0230209A3 (de) * | 1985-12-16 | 1987-08-12 | Ciba-Geigy Ag | Mikrobizide |
HU198825B (en) * | 1987-03-09 | 1989-12-28 | Chinoin Gyogyszer Es Vegyeszet | Synergic fungicides |
HU202481B (en) * | 1989-04-19 | 1991-03-28 | Nitrokemia Ipartelepek | Process for producing n-phenyl-n-(methoxyacetyl)-dl-alanine methyl ester derivatives |
CA2023176A1 (en) * | 1989-08-25 | 1991-02-26 | Margaret M. Bowers-Daines | Preparation and use of iodopropargyl esters of a-amino acid derivatives as antimicrobial agents |
US5252745A (en) * | 1989-08-25 | 1993-10-12 | Rohm And Haas Company | Preparation and use of iodopropargyl esters of α-amino acid derivatives as antimicrobial agents |
US5155136A (en) * | 1990-11-23 | 1992-10-13 | Eastman Kodak Company | Fungicidal, 2-acylacetanilide derivatives |
US5266597A (en) * | 1990-11-23 | 1993-11-30 | Eastman Kodak Company | Fungicidal 2-acylacetanilide derivatives |
US5723491A (en) * | 1994-07-11 | 1998-03-03 | Novartis Corporation | Fungicidal composition and method of controlling fungus infestation |
CH687169A5 (de) * | 1994-07-11 | 1996-10-15 | Ciba Geigy Ag | Mikrobizide. |
DE4429014A1 (de) | 1994-08-16 | 1996-02-22 | Basf Ag | Verfahren zur Herstellung von cyclischen Aminen |
PT1089626E (pt) | 1998-06-17 | 2005-02-28 | Bayer Cropscience Ag | Agente de controlo de parasitas das plantas |
DE10049804A1 (de) * | 2000-10-09 | 2002-04-18 | Bayer Ag | Wirkstoffkombinationen mit fungiziden und akariziden Eigenschaften |
DE10347090A1 (de) | 2003-10-10 | 2005-05-04 | Bayer Cropscience Ag | Synergistische fungizide Wirkstoffkombinationen |
DE10349501A1 (de) | 2003-10-23 | 2005-05-25 | Bayer Cropscience Ag | Synergistische fungizide Wirkstoffkombinationen |
US7601673B2 (en) | 2004-04-30 | 2009-10-13 | Basf Aktiengesellschaft | Fungicidal mixtures |
CA2603589A1 (en) * | 2005-04-01 | 2006-10-05 | Methylgene Inc. | Inhibitors of histone deacetylase |
WO2006131230A2 (de) | 2005-06-09 | 2006-12-14 | Bayer Cropscience Ag | Wirkstoffkombinationen |
DE102005026482A1 (de) | 2005-06-09 | 2006-12-14 | Bayer Cropscience Ag | Wirkstoffkombinationen |
ITMI20051558A1 (it) | 2005-08-09 | 2007-02-10 | Isagro Spa | Miscele e-o composizioni sinergiche cin elevata attivita'fungicida |
DE102006023263A1 (de) | 2006-05-18 | 2007-11-22 | Bayer Cropscience Ag | Synergistische Wirkstoffkombinationen |
CA2661170A1 (en) | 2006-09-18 | 2008-03-27 | Basf Se | Pesticidal mixtures |
EP2258177A3 (en) | 2006-12-15 | 2011-11-09 | Rohm and Haas Company | Mixtures comprising 1-methylcyclopropene |
BR122019020355B1 (pt) | 2007-02-06 | 2020-08-18 | Basf Se | Misturas, composição pesticida, método para controlar fungos nocivos fitopatogênicos, método para proteger plantas do ataque ou infestação pelos insetos, acarídeos ou nematôdeos e método para proteger semente |
EA017621B1 (ru) | 2007-04-23 | 2013-01-30 | Басф Се | Повышение продуктивности растений путем комбинирования химических веществ с трансгенными модификациями |
EP2000028A1 (de) * | 2007-06-06 | 2008-12-10 | Bayer CropScience Aktiengesellschaft | Fungizide Wirkstoffkombinationen |
EP2000030A1 (de) * | 2007-06-06 | 2008-12-10 | Bayer CropScience AG | Fungizide Wirkstoffkombinationen |
DE102007045920B4 (de) | 2007-09-26 | 2018-07-05 | Bayer Intellectual Property Gmbh | Synergistische Wirkstoffkombinationen |
EP2205082B1 (en) | 2007-09-26 | 2012-04-04 | Basf Se | Ternary fungicidal compositions comprising boscalid and chlorothalonil |
JP5417814B2 (ja) * | 2008-11-25 | 2014-02-19 | 住友化学株式会社 | 植物病害防除用組成物及び植物病害の防除方法 |
JP5642786B2 (ja) | 2009-07-16 | 2014-12-17 | バイエル・クロップサイエンス・アーゲーBayer Cropscience Ag | フェニルトリアゾール類を含む相乗的活性化合物組み合わせ |
WO2011026796A1 (en) | 2009-09-01 | 2011-03-10 | Basf Se | Synergistic fungicidal mixtures comprising lactylates and method for combating phytopathogenic fungi |
EP2417853A1 (en) | 2010-08-05 | 2012-02-15 | Basf Se | Synergistic fungicidal and insecticidal mixtures comprising a fungicide and an insecticide |
AU2011347752A1 (en) | 2010-12-20 | 2013-07-11 | Basf Se | Pesticidal active mixtures comprising pyrazole compounds |
EP2481284A3 (en) | 2011-01-27 | 2012-10-17 | Basf Se | Pesticidal mixtures |
HUE038497T2 (hu) | 2011-03-23 | 2018-10-29 | Bayer Ip Gmbh | Hatóanyag-kombinációk |
PL2688405T3 (pl) | 2011-03-23 | 2018-05-30 | Basf Se | Kompozycje zawierające polimerowe, jonowe związki zawierające grupy imidazoliowe |
MX2014001866A (es) | 2011-09-02 | 2015-04-16 | Basf Se | Mezclas agricolas que comprenden compuestos de arilquinazolinona. |
JP2013142063A (ja) * | 2012-01-10 | 2013-07-22 | Sumitomo Chemical Co Ltd | 植物病害防除組成物およびその用途 |
EP3646731A1 (en) | 2012-06-20 | 2020-05-06 | Basf Se | Pesticidal mixtures comprising a pyrazole compound |
WO2014056780A1 (en) | 2012-10-12 | 2014-04-17 | Basf Se | A method for combating phytopathogenic harmful microbes on cultivated plants or plant propagation material |
JP6051799B2 (ja) * | 2012-11-12 | 2016-12-27 | 住友化学株式会社 | 農薬用組成物及び植物の生長を促進する方法 |
PL2934147T3 (pl) | 2012-12-20 | 2020-06-29 | BASF Agro B.V. | Kompozycje zawierające związki triazolowe |
EP2783569A1 (en) | 2013-03-28 | 2014-10-01 | Basf Se | Compositions comprising a triazole compound |
EP2835052A1 (en) | 2013-08-07 | 2015-02-11 | Basf Se | Fungicidal mixtures comprising pyrimidine fungicides |
WO2015036059A1 (en) | 2013-09-16 | 2015-03-19 | Basf Se | Fungicidal pyrimidine compounds |
CA2923101A1 (en) | 2013-09-16 | 2015-03-19 | Basf Se | Fungicidal pyrimidine compounds |
EP2979549A1 (en) | 2014-07-31 | 2016-02-03 | Basf Se | Method for improving the health of a plant |
EP2910126A1 (en) | 2015-05-05 | 2015-08-26 | Bayer CropScience AG | Active compound combinations having insecticidal properties |
AU2016287098A1 (en) | 2015-07-02 | 2018-01-25 | BASF Agro B.V. | Pesticidal compositions comprising a triazole compound |
WO2017072013A1 (en) | 2015-10-27 | 2017-05-04 | Bayer Cropscience Aktiengesellschaft | Composition comprising a safener, a fungicide and metalaxyl |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1164160A (en) * | 1966-12-30 | 1969-09-17 | Shell Int Research | N,N-Disubstituted Amino Acid Derivatives and their use as Herbicides |
GB1289283A (ro) * | 1970-03-04 | 1972-09-13 | ||
DE2212268C3 (de) * | 1971-03-15 | 1979-09-13 | Sumitomo Chemical Co., Ltd., Osaka (Japan) | N-Halogenacetylanilinoessigsäureester, Verfahren zu deren Herstellung und diese enthaltende herbicide Massen |
SE397191B (sv) * | 1972-10-13 | 1977-10-24 | Ciba Geigy Ag | N-(1'-alkoxikarbonyl-etyl)-n-haloacetyl-2,6-dialkylaniliner till anvendning som fungicid |
OA04979A (fr) * | 1974-04-09 | 1980-11-30 | Ciba Geigy | Nouveaux dérivés de l'aniline utiles comme agents microbicides et leur procédé de préparation. |
US4204002A (en) * | 1974-04-09 | 1980-05-20 | Ciba-Geigy Corporation | Methods of using N-(substituted)-N-alkoxy carbonyl anilino compounds |
US4151299A (en) | 1974-04-09 | 1979-04-24 | Ciba-Geigy Corporation | Certain aniline derivatives as microbicidal agents |
US4206228A (en) * | 1974-04-09 | 1980-06-03 | Ciba-Geigy Corporation | Microbicidal aniline derivatives |
CH623458A5 (ro) * | 1975-09-30 | 1981-06-15 | Ciba Geigy Ag |
-
1973
- 1973-04-08 OA OA55472A patent/OA04979A/xx unknown
-
1975
- 1975-03-26 DK DK136375AA patent/DK142360B/da not_active IP Right Cessation
- 1975-03-26 SE SE7503519A patent/SE430015B/xx not_active IP Right Cessation
- 1975-03-26 NO NO751088A patent/NO144960C/no unknown
- 1975-03-26 FI FI750922A patent/FI61477C/fi not_active IP Right Cessation
- 1975-04-07 PH PH17028A patent/PH13585A/en unknown
- 1975-04-07 FR FR7510722A patent/FR2267042B1/fr not_active Expired
- 1975-04-07 LU LU72224A patent/LU72224A1/xx unknown
- 1975-04-07 HU HU75CI1567A patent/HU173318B/hu unknown
- 1975-04-07 DE DE2515091A patent/DE2515091C2/de not_active Expired
- 1975-04-07 CA CA223,937A patent/CA1059141A/en not_active Expired
- 1975-04-08 GB GB14380/75A patent/GB1500581A/en not_active Expired
- 1975-04-08 BG BG029586A patent/BG26357A3/xx unknown
- 1975-04-08 IT IT22134/75A patent/IT1049536B/it active
- 1975-04-08 ES ES436385A patent/ES436385A1/es not_active Expired
- 1975-04-08 AT AT263875A patent/AT341827B/de not_active IP Right Cessation
- 1975-04-08 CY CY1010A patent/CY1010A/xx unknown
- 1975-04-08 TR TR18846A patent/TR18846A/xx unknown
- 1975-04-08 IE IE787/75A patent/IE40913B1/xx unknown
- 1975-04-08 DD DD185303A patent/DD118979A5/xx unknown
- 1975-04-08 YU YU0893/75A patent/YU37311B/xx unknown
- 1975-04-08 DD DD192564A patent/DD124973A5/xx unknown
- 1975-04-08 IL IL47046A patent/IL47046A/xx unknown
- 1975-04-09 CS CS752436A patent/CS187468B2/cs unknown
- 1975-04-09 SU SU752124200A patent/SU730268A3/ru active
- 1975-04-09 JP JP4314775A patent/JPS5443573B2/ja not_active Expired
- 1975-04-09 PL PL1975192740A patent/PL104373B1/pl unknown
- 1975-04-09 NL NLAANVRAGE7504236,A patent/NL184781C/xx not_active IP Right Cessation
- 1975-04-09 RO RO106424A patent/RO83787B/ro unknown
- 1975-04-09 RO RO106425A patent/RO84020B/ro unknown
- 1975-04-09 RO RO7581942A patent/RO79678A/ro unknown
- 1975-04-09 PL PL1975179458A patent/PL97724B1/pl unknown
-
1976
- 1976-07-01 SU SU762375578A patent/SU639445A3/ru active
-
1979
- 1979-04-08 AR AR258284A patent/AR226272A1/es active
- 1979-05-11 KE KE2960A patent/KE2960A/xx unknown
- 1979-06-21 HK HK403/79A patent/HK40379A/xx unknown
- 1979-12-07 US US06/101,355 patent/US4294850A/en not_active Expired - Lifetime
-
1980
- 1980-12-30 MY MY56/80A patent/MY8000056A/xx unknown
-
1981
- 1981-06-15 US US06/273,801 patent/US4439447A/en not_active Expired - Lifetime
- 1981-06-15 US US06/274,019 patent/US4427696A/en not_active Expired - Lifetime
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