DE2229027A1 - Verfahren zur herstellung von arzneimittelzubereitungen - Google Patents
Verfahren zur herstellung von arzneimittelzubereitungenInfo
- Publication number
- DE2229027A1 DE2229027A1 DE2229027A DE2229027A DE2229027A1 DE 2229027 A1 DE2229027 A1 DE 2229027A1 DE 2229027 A DE2229027 A DE 2229027A DE 2229027 A DE2229027 A DE 2229027A DE 2229027 A1 DE2229027 A1 DE 2229027A1
- Authority
- DE
- Germany
- Prior art keywords
- active ingredient
- mixture
- acid
- aluminum
- aluminum alkoxide
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 40
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000002360 preparation method Methods 0.000 title claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 38
- -1 Aluminum alkoxide Chemical class 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 25
- 239000004480 active ingredient Substances 0.000 claims description 23
- 238000006460 hydrolysis reaction Methods 0.000 claims description 17
- 230000007062 hydrolysis Effects 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical group [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 claims description 13
- 229960001138 acetylsalicylic acid Drugs 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 239000000825 pharmaceutical preparation Substances 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- HRUQNUFHAHTISK-UHFFFAOYSA-N oxo(propan-2-yloxy)alumane Chemical compound CC(C)O[Al]=O HRUQNUFHAHTISK-UHFFFAOYSA-N 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 4
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000003242 anti bacterial agent Substances 0.000 claims description 4
- 238000006482 condensation reaction Methods 0.000 claims description 4
- 229960002146 guaifenesin Drugs 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 125000005273 2-acetoxybenzoic acid group Chemical group 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 150000001735 carboxylic acids Chemical group 0.000 claims description 3
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims description 2
- HWGBHCRJGXAGEU-UHFFFAOYSA-N Methylthiouracil Chemical compound CC1=CC(=O)NC(=S)N1 HWGBHCRJGXAGEU-UHFFFAOYSA-N 0.000 claims description 2
- 239000004100 Oxytetracycline Substances 0.000 claims description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 claims description 2
- MECHNRXZTMCUDQ-UHFFFAOYSA-N Vitamin D2 Natural products C1CCC2(C)C(C(C)C=CC(C)C(C)C)CCC2C1=CC=C1CC(O)CCC1=C MECHNRXZTMCUDQ-UHFFFAOYSA-N 0.000 claims description 2
- 235000010323 ascorbic acid Nutrition 0.000 claims description 2
- 229960005070 ascorbic acid Drugs 0.000 claims description 2
- 239000011668 ascorbic acid Substances 0.000 claims description 2
- 229960002061 ergocalciferol Drugs 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 229960002545 methylthiouracil Drugs 0.000 claims description 2
- 235000001968 nicotinic acid Nutrition 0.000 claims description 2
- 229960003512 nicotinic acid Drugs 0.000 claims description 2
- 239000011664 nicotinic acid Substances 0.000 claims description 2
- 229960000625 oxytetracycline Drugs 0.000 claims description 2
- IWVCMVBTMGNXQD-PXOLEDIWSA-N oxytetracycline Chemical compound C1=CC=C2[C@](O)(C)[C@H]3[C@H](O)[C@H]4[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-PXOLEDIWSA-N 0.000 claims description 2
- 235000019366 oxytetracycline Nutrition 0.000 claims description 2
- 229960005489 paracetamol Drugs 0.000 claims description 2
- 229920000151 polyglycol Polymers 0.000 claims description 2
- 239000010695 polyglycol Substances 0.000 claims description 2
- 229920001522 polyglycol ester Polymers 0.000 claims description 2
- IWVCMVBTMGNXQD-UHFFFAOYSA-N terramycin dehydrate Natural products C1=CC=C2C(O)(C)C3C(O)C4C(N(C)C)C(O)=C(C(N)=O)C(=O)C4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-UHFFFAOYSA-N 0.000 claims description 2
- MECHNRXZTMCUDQ-RKHKHRCZSA-N vitamin D2 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)/C=C/[C@H](C)C(C)C)=C\C=C1\C[C@@H](O)CCC1=C MECHNRXZTMCUDQ-RKHKHRCZSA-N 0.000 claims description 2
- 235000001892 vitamin D2 Nutrition 0.000 claims description 2
- 239000011653 vitamin D2 Substances 0.000 claims description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims 2
- 230000003115 biocidal effect Effects 0.000 claims 2
- 239000005711 Benzoic acid Substances 0.000 claims 1
- 125000003545 alkoxy group Chemical group 0.000 claims 1
- 235000010233 benzoic acid Nutrition 0.000 claims 1
- 239000003814 drug Substances 0.000 claims 1
- 229940079593 drug Drugs 0.000 claims 1
- 229960003742 phenol Drugs 0.000 claims 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 22
- 239000000047 product Substances 0.000 description 22
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 12
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 9
- 239000011541 reaction mixture Substances 0.000 description 9
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 6
- 229960004889 salicylic acid Drugs 0.000 description 6
- 239000008186 active pharmaceutical agent Substances 0.000 description 5
- 239000013543 active substance Substances 0.000 description 5
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- GQSZLMMXKNYCTP-UHFFFAOYSA-K aluminum;2-carboxyphenolate Chemical compound [Al+3].OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O GQSZLMMXKNYCTP-UHFFFAOYSA-K 0.000 description 3
- 230000006196 deacetylation Effects 0.000 description 3
- 238000003381 deacetylation reaction Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- BSYNRYMUTXBXSQ-FOQJRBATSA-N 59096-14-9 Chemical compound CC(=O)OC1=CC=CC=C1[14C](O)=O BSYNRYMUTXBXSQ-FOQJRBATSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 208000007107 Stomach Ulcer Diseases 0.000 description 2
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 2
- 229940088710 antibiotic agent Drugs 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000011872 intimate mixture Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- OOAFLQVYVWVEFX-UHFFFAOYSA-N 2-(dipropylsulfamoyl)benzoic acid Chemical compound CCCN(CCC)S(=O)(=O)C1=CC=CC=C1C(O)=O OOAFLQVYVWVEFX-UHFFFAOYSA-N 0.000 description 1
- WUBBRNOQWQTFEX-UHFFFAOYSA-N 4-aminosalicylic acid Chemical compound NC1=CC=C(C(O)=O)C(O)=C1 WUBBRNOQWQTFEX-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- RKFMOTBTFHXWCM-UHFFFAOYSA-M [AlH2]O Chemical class [AlH2]O RKFMOTBTFHXWCM-UHFFFAOYSA-M 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 229960004685 aloxiprin Drugs 0.000 description 1
- REXUFGONOCXWFJ-UHFFFAOYSA-K aluminum 2-carboxyphenolate dihydroxide Chemical compound C(C=1C(O)=CC=CC1)(=O)[O-].O[Al+]O REXUFGONOCXWFJ-UHFFFAOYSA-K 0.000 description 1
- GKJRJGXKDYCFNF-UHFFFAOYSA-K aluminum;2-acetyloxybenzoate Chemical compound [Al+3].CC(=O)OC1=CC=CC=C1C([O-])=O.CC(=O)OC1=CC=CC=C1C([O-])=O.CC(=O)OC1=CC=CC=C1C([O-])=O GKJRJGXKDYCFNF-UHFFFAOYSA-K 0.000 description 1
- 229960004909 aminosalicylic acid Drugs 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- MXCPYJZDGPQDRA-UHFFFAOYSA-N dialuminum;2-acetyloxybenzoic acid;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3].CC(=O)OC1=CC=CC=C1C(O)=O MXCPYJZDGPQDRA-UHFFFAOYSA-N 0.000 description 1
- UGMCXQCYOVCMTB-UHFFFAOYSA-K dihydroxy(stearato)aluminium Chemical compound CCCCCCCCCCCCCCCCCC(=O)O[Al](O)O UGMCXQCYOVCMTB-UHFFFAOYSA-K 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000013583 drug formulation Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000004051 gastric juice Anatomy 0.000 description 1
- 201000005917 gastric ulcer Diseases 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 229940011051 isopropyl acetate Drugs 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RBKMMJSQKNKNEV-RITPCOANSA-N penicillanic acid Chemical compound OC(=O)[C@H]1C(C)(C)S[C@@H]2CC(=O)N21 RBKMMJSQKNKNEV-RITPCOANSA-N 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 239000002831 pharmacologic agent Substances 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 201000008827 tuberculosis Diseases 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/06—Aluminium compounds
- C07F5/069—Aluminium compounds without C-aluminium linkages
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3165871 | 1971-07-06 | ||
| GB403572*[A GB1397407A (en) | 1971-07-06 | 1972-01-28 | Aluminium containing pharmaceutical compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2229027A1 true DE2229027A1 (de) | 1973-01-18 |
Family
ID=26238785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2229027A Pending DE2229027A1 (de) | 1971-07-06 | 1972-06-14 | Verfahren zur herstellung von arzneimittelzubereitungen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3880901A (cg-RX-API-DMAC10.html) |
| CH (1) | CH579919A5 (cg-RX-API-DMAC10.html) |
| DE (1) | DE2229027A1 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2144680B1 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1397407A (cg-RX-API-DMAC10.html) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229446A (en) * | 1979-03-13 | 1980-10-21 | Kyowa Hakko Kogyo Co., Ltd. | Aluminum acetylsalicylate glutaminate |
| ZA816685B (en) | 1980-10-03 | 1982-09-29 | Hoffmann La Roche | Aluminium compounds containing organic radicals |
| IT1150759B (it) * | 1982-04-05 | 1986-12-17 | Corvi Camillo Spa | Complessi organometallici di n-cicloesil-piperazino-acetammidi o propionammidi, loro preparazione e impiego come farmaci antiulcera-antisecretivi-tamponanti |
| FR2774906B1 (fr) * | 1998-02-13 | 2000-05-12 | Rhodia Chimie Sa | Systeme d'encapsulation a coeur organique et a ecorce minerale a base d'hydroxycarbonate d'aluminium et son procede de preparation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2959606A (en) * | 1956-09-18 | 1960-11-08 | Lewis Howe Company | Production of aluminum acetylsalicylate |
| GB888666A (en) * | 1959-04-13 | 1962-01-31 | Hardman & Holden Ltd | Improvements relating to organic aluminium compounds |
| GB959282A (en) * | 1959-08-19 | 1964-05-27 | Hardman & Holden Ltd | Improvements relating to organic aluminium compounds |
| GB961299A (en) * | 1960-05-02 | 1964-06-17 | Hardman & Holden Ltd | Improvements relating to organic aluminium compounds |
| US3100787A (en) * | 1960-05-10 | 1963-08-13 | Jr Ludwig Adolph Staib | Basic aluminum salts of acetylsalicylate acid and a non-toxic water soluble acid |
| US3352893A (en) * | 1963-02-13 | 1967-11-14 | Chatten Drug & Chem Co | Method of producing hydroxy aluminum disalicylate |
-
1972
- 1972-01-28 GB GB403572*[A patent/GB1397407A/en not_active Expired
- 1972-06-14 DE DE2229027A patent/DE2229027A1/de active Pending
- 1972-06-23 FR FR7222751A patent/FR2144680B1/fr not_active Expired
- 1972-07-03 US US268266A patent/US3880901A/en not_active Expired - Lifetime
- 1972-07-04 CH CH999672A patent/CH579919A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2144680A1 (cg-RX-API-DMAC10.html) | 1973-02-16 |
| FR2144680B1 (cg-RX-API-DMAC10.html) | 1977-08-05 |
| GB1397407A (en) | 1975-06-11 |
| US3880901A (en) | 1975-04-29 |
| CH579919A5 (cg-RX-API-DMAC10.html) | 1976-09-30 |
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