NO120877B - - Google Patents
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- Publication number
- NO120877B NO120877B NO0781/68A NO78168A NO120877B NO 120877 B NO120877 B NO 120877B NO 0781/68 A NO0781/68 A NO 0781/68A NO 78168 A NO78168 A NO 78168A NO 120877 B NO120877 B NO 120877B
- Authority
- NO
- Norway
- Prior art keywords
- nitrogen
- weight
- cement
- concrete
- mortar
- Prior art date
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 15
- 239000004570 mortar (masonry) Substances 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000004567 concrete Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000012190 activator Substances 0.000 claims description 6
- 150000002429 hydrazines Chemical class 0.000 claims description 3
- 229910017464 nitrogen compound Inorganic materials 0.000 claims description 2
- 150000002830 nitrogen compounds Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 20
- 239000000654 additive Substances 0.000 description 13
- 239000004568 cement Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 230000000996 additive effect Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- VDNXILQBKLFION-UHFFFAOYSA-N [K].[Cu] Chemical compound [K].[Cu] VDNXILQBKLFION-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229920001732 Lignosulfonate Polymers 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 235000010443 alginic acid Nutrition 0.000 description 2
- 229920000615 alginic acid Polymers 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 2
- VJRITMATACIYAF-UHFFFAOYSA-N benzenesulfonohydrazide Chemical compound NNS(=O)(=O)C1=CC=CC=C1 VJRITMATACIYAF-UHFFFAOYSA-N 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 description 2
- ICMFHHGKLRTCBM-UHFFFAOYSA-N 4-nitrobenzenediazonium Chemical class [O-][N+](=O)C1=CC=C([N+]#N)C=C1 ICMFHHGKLRTCBM-UHFFFAOYSA-N 0.000 description 1
- QCVGEOXPDFCNHA-UHFFFAOYSA-N 5,5-dimethyl-2,4-dioxo-1,3-oxazolidine-3-carboxamide Chemical compound CC1(C)OC(=O)N(C(N)=O)C1=O QCVGEOXPDFCNHA-UHFFFAOYSA-N 0.000 description 1
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000004159 Potassium persulphate Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- -1 alginic acid ester Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000014103 egg white Nutrition 0.000 description 1
- 210000000969 egg white Anatomy 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- VRIVJOXICYMTAG-IYEMJOQQSA-L iron(ii) gluconate Chemical compound [Fe+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O VRIVJOXICYMTAG-IYEMJOQQSA-L 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/20—Sulfonated aromatic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW0043482 | 1967-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO120877B true NO120877B (cs) | 1970-12-14 |
Family
ID=7603680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO0781/68A NO120877B (cs) | 1967-03-03 | 1968-03-01 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3591394A (cs) |
| AT (1) | AT276200B (cs) |
| BE (1) | BE710117A (cs) |
| CH (1) | CH497352A (cs) |
| DE (1) | DE1671263B1 (cs) |
| DK (1) | DK127721B (cs) |
| ES (1) | ES349767A1 (cs) |
| FR (1) | FR1554540A (cs) |
| GB (1) | GB1205664A (cs) |
| NL (1) | NL6802141A (cs) |
| NO (1) | NO120877B (cs) |
| SE (1) | SE355177B (cs) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3945840A (en) * | 1970-09-24 | 1976-03-23 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Non-combustible molding material |
| US3978180A (en) * | 1970-09-24 | 1976-08-31 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Method of producing a non-combustible molding material |
| US4142909A (en) * | 1975-09-11 | 1979-03-06 | Construction Products Research, Inc. | Method and composition for controlling contraction in setting cementitious systems through the addition of gas generating agents |
| US4022715A (en) * | 1975-12-31 | 1977-05-10 | American Cyanamid Company | Process for catalyst materials of increased pore volume and pore diameter |
| US4304298A (en) * | 1979-05-10 | 1981-12-08 | Halliburton Company | Well cementing process and gasified cements useful therein |
| US4340427A (en) * | 1979-05-10 | 1982-07-20 | Halliburton Company | Well cementing process and gasified cements useful therein |
| US4333764A (en) * | 1981-01-21 | 1982-06-08 | Shell Oil Company | Nitrogen-gas-stabilized cement and a process for making and using it |
| US4452898A (en) * | 1981-01-21 | 1984-06-05 | Shell Oil Company | Process for measuring the volume change of a nitrogen-gas-stabilized cement |
| US4450010A (en) * | 1983-04-29 | 1984-05-22 | Halliburton Company | Well cementing process and gasified cements useful therein |
| US6715553B2 (en) * | 2002-05-31 | 2004-04-06 | Halliburton Energy Services, Inc. | Methods of generating gas in well fluids |
| US6722434B2 (en) * | 2002-05-31 | 2004-04-20 | Halliburton Energy Services, Inc. | Methods of generating gas in well treating fluids |
| US6858566B1 (en) | 2002-05-31 | 2005-02-22 | Halliburton Energy Services, Inc. | Methods of generating gas in and foaming well cement compositions |
| US7199083B2 (en) * | 2002-12-06 | 2007-04-03 | Self Generating Foam Incoporated | Self-generating foamed drilling fluids |
| US7073584B2 (en) * | 2003-11-12 | 2006-07-11 | Halliburton Energy Services, Inc. | Processes for incorporating inert gas in a cement composition containing spherical beads |
| US20050241545A1 (en) * | 2004-04-28 | 2005-11-03 | Vargo Richard F Jr | Methods of extending the shelf life of and revitalizing lightweight beads for use in cement compositions |
| WO2005123619A2 (en) * | 2004-06-15 | 2005-12-29 | Construction Research & Technology Gmbh | Improving the freeze-thaw durability of dry cast cementitious mixtures |
| MXPA06014834A (es) * | 2004-06-15 | 2007-03-26 | Constr Res & Tech Gmbh | Proporcion de resistencia a la congelacion y al deshielo en composicioes cementosas. |
| EP1758832A2 (en) * | 2004-06-15 | 2007-03-07 | Construction Research & Technology GmbH | Providing freezing and thawing resistance to cementitious compositions |
| US7373981B2 (en) | 2005-02-14 | 2008-05-20 | Halliburton Energy Services, Inc. | Methods of cementing with lightweight cement compositions |
| WO2006133856A1 (en) * | 2005-06-14 | 2006-12-21 | Construction Research & Technology Gmbh | Providing freezing and thawing resistance to cementitious compositions |
| KR20080023685A (ko) * | 2005-06-14 | 2008-03-14 | 컨스트럭션 리서치 앤 테크놀로지 게엠베하 | 시멘트계 조성물에 동결 및 해동 저항성을 제공하는작용제를 전달하는 방법 |
| DE102005033454A1 (de) * | 2005-07-18 | 2007-01-25 | Construction Research & Technology Gmbh | Verwendung eines organischen Additivs zur Herstellung von Porenbeton |
| DE102013011742B3 (de) | 2013-07-12 | 2014-06-05 | Xella Baustoffe Gmbh | Hydrothermal gehärtetes Poren- oder Schaumbetonmaterial, hydrothermal gehärteter Poren- oder Schaumbetonformkörper, Verfahren zu dessen Herstellung und Verwendung von gefälltem Calciumcarbonat und/oder Calciummagnesiumcarbonat |
| CN112174632B (zh) * | 2020-10-21 | 2022-05-13 | 青岛合汇混凝土工程有限公司 | 一种喷射混凝土及其制备方法 |
-
1967
- 1967-03-03 DE DE19671671263 patent/DE1671263B1/de not_active Withdrawn
- 1967-10-31 CH CH1523067A patent/CH497352A/de not_active IP Right Cessation
- 1967-12-19 AT AT1143667A patent/AT276200B/de active
-
1968
- 1968-01-13 ES ES349767A patent/ES349767A1/es not_active Expired
- 1968-01-30 BE BE710117D patent/BE710117A/xx unknown
- 1968-02-15 NL NL6802141A patent/NL6802141A/xx unknown
- 1968-02-27 US US708494A patent/US3591394A/en not_active Expired - Lifetime
- 1968-02-28 GB GB9556/68A patent/GB1205664A/en not_active Expired
- 1968-03-01 NO NO0781/68A patent/NO120877B/no unknown
- 1968-03-01 DK DK83968AA patent/DK127721B/da unknown
- 1968-03-01 SE SE02717/68A patent/SE355177B/xx unknown
- 1968-03-04 FR FR1554540D patent/FR1554540A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE710117A (cs) | 1968-05-30 |
| DK127721B (da) | 1973-12-24 |
| CH497352A (de) | 1970-10-15 |
| ES349767A1 (es) | 1969-04-01 |
| NL6802141A (cs) | 1968-09-04 |
| US3591394A (en) | 1971-07-06 |
| AT276200B (de) | 1969-11-10 |
| FR1554540A (cs) | 1969-01-17 |
| SE355177B (cs) | 1973-04-09 |
| DE1671263B1 (de) | 1971-06-03 |
| GB1205664A (en) | 1970-09-16 |
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