LU84534A1 - Verfahren zur gewinnung von laxativen verbindungen aus sennadroge - Google Patents
Verfahren zur gewinnung von laxativen verbindungen aus sennadroge Download PDFInfo
- Publication number
- LU84534A1 LU84534A1 LU84534A LU84534A LU84534A1 LU 84534 A1 LU84534 A1 LU 84534A1 LU 84534 A LU84534 A LU 84534A LU 84534 A LU84534 A LU 84534A LU 84534 A1 LU84534 A1 LU 84534A1
- Authority
- LU
- Luxembourg
- Prior art keywords
- methanol
- drug
- sennosides
- butanol
- extraction
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 31
- 150000001875 compounds Chemical class 0.000 title claims description 12
- 239000008141 laxative Substances 0.000 title claims description 12
- 230000002475 laxative effect Effects 0.000 title claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 93
- 229930186851 sennoside Natural products 0.000 claims description 48
- 229940079593 drug Drugs 0.000 claims description 45
- 239000003814 drug Substances 0.000 claims description 45
- 229940124513 senna glycoside Drugs 0.000 claims description 37
- IPQVTOJGNYVQEO-UHFFFAOYSA-N 9-[2-carboxy-4-hydroxy-10-oxo-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-9h-anthracen-9-yl]-4-hydroxy-10-oxo-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-9h-anthracene-2-carboxylic acid Chemical class OC1C(O)C(O)C(CO)OC1OC1=CC=CC2=C1C(=O)C1=C(O)C=C(C(O)=O)C=C1C2C1C2=CC(C(O)=O)=CC(O)=C2C(=O)C2=C(OC3C(C(O)C(O)C(CO)O3)O)C=CC=C21 IPQVTOJGNYVQEO-UHFFFAOYSA-N 0.000 claims description 34
- 239000000284 extract Substances 0.000 claims description 28
- 238000000605 extraction Methods 0.000 claims description 26
- 235000006693 Cassia laevigata Nutrition 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- IPQVTOJGNYVQEO-KGFNBKMBSA-N sennoside A Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC2=C1C(=O)C1=C(O)C=C(C(O)=O)C=C1[C@@H]2[C@H]1C2=CC(C(O)=O)=CC(O)=C2C(=O)C2=C(O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O)C=CC=C21 IPQVTOJGNYVQEO-KGFNBKMBSA-N 0.000 claims description 17
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000012141 concentrate Substances 0.000 claims description 15
- 238000002425 crystallisation Methods 0.000 claims description 15
- 230000008025 crystallization Effects 0.000 claims description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000000622 liquid--liquid extraction Methods 0.000 claims description 10
- 238000000638 solvent extraction Methods 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 6
- 238000005325 percolation Methods 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- SYBYTAAJFKOIEJ-UHFFFAOYSA-N 3-Methylbutan-2-one Chemical compound CC(C)C(C)=O SYBYTAAJFKOIEJ-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 159000000000 sodium salts Chemical class 0.000 claims description 3
- 238000001953 recrystallisation Methods 0.000 claims description 2
- 241000522641 Senna Species 0.000 claims 4
- 229940125722 laxative agent Drugs 0.000 claims 1
- 239000002904 solvent Substances 0.000 description 29
- 239000000243 solution Substances 0.000 description 21
- 241001249696 Senna alexandrina Species 0.000 description 20
- 239000000047 product Substances 0.000 description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 239000013543 active substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 229930182478 glucoside Natural products 0.000 description 5
- 150000008131 glucosides Chemical class 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000012043 crude product Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000012452 mother liquor Substances 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 159000000007 calcium salts Chemical class 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 229940058506 senna glycosides Drugs 0.000 description 3
- YDQWDHRMZQUTBA-UHFFFAOYSA-N Aloe emodin Chemical compound C1=CC=C2C(=O)C3=CC(CO)=CC(O)=C3C(=O)C2=C1O YDQWDHRMZQUTBA-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000001454 anthracenes Chemical class 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 2
- 150000007530 organic bases Chemical class 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 230000001766 physiological effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- OVARTBFNCCXQKS-UHFFFAOYSA-N propan-2-one;hydrate Chemical compound O.CC(C)=O OVARTBFNCCXQKS-UHFFFAOYSA-N 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- VLXSIHLNPYRFFN-UHFFFAOYSA-N 1,4-dioxane;methanol Chemical compound OC.C1COCCO1 VLXSIHLNPYRFFN-UHFFFAOYSA-N 0.000 description 1
- JYUXDXWXTPSAEL-UHFFFAOYSA-N 1,4-dioxane;oxolane Chemical compound C1CCOC1.C1COCCO1 JYUXDXWXTPSAEL-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- 208000004998 Abdominal Pain Diseases 0.000 description 1
- 208000002881 Colic Diseases 0.000 description 1
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 102000004366 Glucosidases Human genes 0.000 description 1
- 108010056771 Glucosidases Proteins 0.000 description 1
- 239000009701 Senna Extract Substances 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 150000008425 anthrones Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- JQVYZJIFFAHQKX-ZAULLPPESA-L calcium;3-carboxy-10-[2-carboxy-4-oxido-10-oxo-5-[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-9h-anthracen-9-yl]-9-oxo-8-[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-10h-anthracen-1-olate Chemical compound [Ca+2].O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC2=C1C(=O)C1=C(O)C=C(C([O-])=O)C=C1C2C1C2=CC(C([O-])=O)=CC(O)=C2C(=O)C2=C(O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O)C=CC=C21 JQVYZJIFFAHQKX-ZAULLPPESA-L 0.000 description 1
- 235000021466 carotenoid Nutrition 0.000 description 1
- 150000001747 carotenoids Chemical class 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- 239000001752 chlorophylls and chlorophyllins Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 235000013325 dietary fiber Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 229930003944 flavone Natural products 0.000 description 1
- 150000002213 flavones Chemical class 0.000 description 1
- 235000011949 flavones Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- 229930182470 glycoside Natural products 0.000 description 1
- 150000002338 glycosides Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000002803 maceration Methods 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- GRWIABMEEKERFV-UHFFFAOYSA-N methanol;oxolane Chemical compound OC.C1CCOC1 GRWIABMEEKERFV-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000009814 sennoside A&B Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000003431 steroids Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000012178 vegetable wax Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/48—Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/48—Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
- A61K36/482—Cassia, e.g. golden shower tree
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/10—Laxatives
Landscapes
- Health & Medical Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Botany (AREA)
- Mycology (AREA)
- Epidemiology (AREA)
- Microbiology (AREA)
- Medical Informatics (AREA)
- Biotechnology (AREA)
- Alternative & Traditional Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Medicines Containing Plant Substances (AREA)
- Saccharide Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicinal Preparation (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3200131A DE3200131A1 (de) | 1982-01-05 | 1982-01-05 | "verfahren zur gewinnung von laxativen verbindungen aus sennadroge" |
DE3200131 | 1982-01-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
LU84534A1 true LU84534A1 (de) | 1983-06-13 |
Family
ID=6152636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
LU84534A LU84534A1 (de) | 1982-01-05 | 1982-12-15 | Verfahren zur gewinnung von laxativen verbindungen aus sennadroge |
Country Status (27)
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120990C2 (de) * | 1991-06-25 | 1995-07-27 | Madaus Ag | Verfahren zur Herstellung von Diacetylrhein |
DE4120989C2 (de) * | 1991-06-25 | 1995-07-27 | Madaus Ag | Verfahren zur Herstellung von Diacetylrhein |
DE4120991A1 (de) * | 1991-06-25 | 1993-01-07 | Madaus Ag | Verfahren zur gewinnung der sennoside a, b und a1 |
US5710260A (en) * | 1991-06-25 | 1998-01-20 | Madaus Ag | Method of extracting sennosides A, B and A1 |
JP5449710B2 (ja) * | 2008-07-11 | 2014-03-19 | 株式会社ブルックスホールディングス | 機能性食品素材 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB744876A (en) * | 1953-10-27 | 1956-02-15 | Westminster Lab Ltd | Process for extracting the active principles from senna |
GB804232A (en) * | 1956-01-09 | 1958-11-12 | Byk Gulden Lomberg Chem Fab | Improvements in or relating to the production of sennosides from folia sennae or folliculi sennae |
DE1032888B (de) * | 1956-01-09 | 1958-06-26 | Byk Gulden Lomberg Chem Fab | Verfahren zur Gewinnung von die natuerlichen Sennosidsalze enthaltenden Wirkstoffen aus Sennesdrogen |
GB832017A (en) * | 1957-10-02 | 1960-04-06 | Westminster Lab Ltd | Senna preparations |
DE1158211B (de) * | 1961-09-02 | 1963-11-28 | Ludwig Heumann & Co Chemisch P | Verfahren zur Herstellung von Trockenpulvern mit Wirkstoffen der Sennesblaetter oder-schoten |
US3364113A (en) * | 1962-04-23 | 1968-01-16 | Westminster Lab Ltd | Senna preparations and methods of making and using them |
FR1490738A (fr) * | 1966-06-24 | 1967-08-04 | Ile De Rech Pharmaceutiqje Et | Procédé d'extraction de dérivés anthracéniques contenus dans certaines plantes |
DE1617667B1 (de) * | 1966-09-08 | 1970-09-03 | Nattermann A & Cie | Verfahren zur Gewinnung eines sennosideichen Wirkstoffkonzentrates aus Sennesschoten |
FR1536622A (fr) * | 1966-09-08 | 1968-08-16 | Nattermann & Compagnie A | Procédé pour la production d'un concentré de substance active riche en sennacidesavec des follicules de séné |
JPS5936604B2 (ja) * | 1975-07-18 | 1984-09-05 | 大日本製薬株式会社 | センノサイド類のカルシウム塩の製造法 |
FR2422678A1 (fr) * | 1978-04-14 | 1979-11-09 | Synthelabo | Extraction de sennosides |
-
1982
- 1982-01-05 DE DE3200131A patent/DE3200131A1/de active Granted
- 1982-10-20 AR AR291034A patent/AR228690A1/es active
- 1982-10-29 CA CA000414539A patent/CA1203800A/en not_active Expired
- 1982-11-01 KR KR8204908A patent/KR880000018B1/ko not_active Expired
- 1982-11-01 IL IL67147A patent/IL67147A/xx unknown
- 1982-11-11 AU AU90375/82A patent/AU557773B2/en not_active Ceased
- 1982-11-22 NL NLAANVRAGE8204533,A patent/NL188680C/xx not_active IP Right Cessation
- 1982-11-24 GB GB08233475A patent/GB2112640B/en not_active Expired
- 1982-11-30 AT AT0435582A patent/AT376368B/de not_active IP Right Cessation
- 1982-12-03 PT PT75934A patent/PT75934B/pt not_active IP Right Cessation
- 1982-12-06 IE IE2884/82A patent/IE54425B1/en not_active IP Right Cessation
- 1982-12-15 LU LU84534A patent/LU84534A1/de unknown
- 1982-12-17 DK DK559682A patent/DK169075B1/da active
- 1982-12-27 FI FI824454A patent/FI75992C/fi not_active IP Right Cessation
- 1982-12-28 IT IT25002/82A patent/IT1191156B/it active
- 1982-12-28 JP JP57227837A patent/JPS58131997A/ja active Granted
- 1982-12-30 SE SE8207515A patent/SE8207515L/xx not_active Application Discontinuation
- 1982-12-30 ZA ZA829570A patent/ZA829570B/xx unknown
- 1982-12-31 CH CH7650/82A patent/CH653339A5/de not_active IP Right Cessation
- 1982-12-31 YU YU2925/82A patent/YU42829B/xx unknown
-
1983
- 1983-01-04 BE BE0/209848A patent/BE895536A/fr not_active IP Right Cessation
- 1983-01-04 MX MX8310437U patent/MX7121E/es unknown
- 1983-01-04 HU HU8318A patent/HU188241B/hu not_active IP Right Cessation
- 1983-01-04 GR GR70202A patent/GR77138B/el unknown
- 1983-01-05 FR FR8300110A patent/FR2519253B1/fr not_active Expired
-
1985
- 1985-06-15 SG SG45385A patent/SG45385G/en unknown
- 1985-11-14 HK HK905/85A patent/HK90585A/xx unknown
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