NO131106B - - Google Patents
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- Publication number
- NO131106B NO131106B NO01337/73A NO133773A NO131106B NO 131106 B NO131106 B NO 131106B NO 01337/73 A NO01337/73 A NO 01337/73A NO 133773 A NO133773 A NO 133773A NO 131106 B NO131106 B NO 131106B
- Authority
- NO
- Norway
- Prior art keywords
- amino
- purinylthio
- formula
- nitro
- ring
- Prior art date
Links
- -1 heterocyclic 6-purinyl sulfides Chemical class 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 4
- RRQKBHIMPMKQDM-UHFFFAOYSA-N 6-(7h-purin-6-ylsulfanyl)-7h-purine Chemical compound N=1C=NC=2N=CNC=2C=1SC1=NC=NC2=C1NC=N2 RRQKBHIMPMKQDM-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 claims description 2
- 125000004429 atom Chemical group 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 2
- 150000002367 halogens Chemical group 0.000 claims description 2
- 125000000623 heterocyclic group Chemical group 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 125000002883 imidazolyl group Chemical group 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 45
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- 238000000862 absorption spectrum Methods 0.000 description 13
- 239000000203 mixture Substances 0.000 description 10
- 239000002244 precipitate Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- GLVAUDGFNGKCSF-UHFFFAOYSA-N mercaptopurine Chemical class S=C1NC=NC2=C1NC=N2 GLVAUDGFNGKCSF-UHFFFAOYSA-N 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- WYWHKKSPHMUBEB-UHFFFAOYSA-N tioguanine Chemical compound N1C(N)=NC(=S)C2=C1N=CN2 WYWHKKSPHMUBEB-UHFFFAOYSA-N 0.000 description 8
- NIBFSSALYRLHPY-UHFFFAOYSA-N 6-iodo-7h-purine Chemical compound IC1=NC=NC2=C1NC=N2 NIBFSSALYRLHPY-UHFFFAOYSA-N 0.000 description 7
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 6
- 229940040526 anhydrous sodium acetate Drugs 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 229960001428 mercaptopurine Drugs 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- KSEFBYAEHWXHLM-UHFFFAOYSA-N 5-bromo-4-nitro-1h-imidazole Chemical compound [O-][N+](=O)C=1N=CNC=1Br KSEFBYAEHWXHLM-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 238000001226 reprecipitation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OSJUNMSWBBOTQU-UHFFFAOYSA-N 5-chloro-1-methyl-4-nitroimidazole Chemical compound CN1C=NC([N+]([O-])=O)=C1Cl OSJUNMSWBBOTQU-UHFFFAOYSA-N 0.000 description 2
- VXCSKHCSXFSTLW-UHFFFAOYSA-N 5-nitro-1h-imidazole-4-thiol Chemical compound [O-][N+](=O)C=1NC=NC=1S VXCSKHCSXFSTLW-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 150000004683 dihydrates Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- YFTWHEBLORWGNI-UHFFFAOYSA-N tiamiprine Chemical compound CN1C=NC([N+]([O-])=O)=C1SC1=NC(N)=NC2=C1NC=N2 YFTWHEBLORWGNI-UHFFFAOYSA-N 0.000 description 2
- MGAXHFMCFLLMNG-UHFFFAOYSA-N 1h-pyrimidine-6-thione Chemical compound SC1=CC=NC=N1 MGAXHFMCFLLMNG-UHFFFAOYSA-N 0.000 description 1
- KXZSVYHFYHTNBI-UHFFFAOYSA-N 1h-quinoline-2-thione Chemical compound C1=CC=CC2=NC(S)=CC=C21 KXZSVYHFYHTNBI-UHFFFAOYSA-N 0.000 description 1
- GIKMWFAAEIACRF-UHFFFAOYSA-N 2,4,5-trichloropyrimidine Chemical compound ClC1=NC=C(Cl)C(Cl)=N1 GIKMWFAAEIACRF-UHFFFAOYSA-N 0.000 description 1
- MCUIPKFCAPKZJU-UHFFFAOYSA-N 2-(7h-purin-6-ylsulfanyl)quinoline Chemical compound C=1C=C2C=CC=CC2=NC=1SC1=NC=NC2=C1NC=N2 MCUIPKFCAPKZJU-UHFFFAOYSA-N 0.000 description 1
- GUSWJGOYDXFJSI-UHFFFAOYSA-N 3,6-dichloropyridazine Chemical compound ClC1=CC=C(Cl)N=N1 GUSWJGOYDXFJSI-UHFFFAOYSA-N 0.000 description 1
- HCTISZQLTGAYOX-UHFFFAOYSA-N 4,6-dichloro-5-nitropyrimidine Chemical compound [O-][N+](=O)C1=C(Cl)N=CN=C1Cl HCTISZQLTGAYOX-UHFFFAOYSA-N 0.000 description 1
- TZVUUWYPKMTQDF-UHFFFAOYSA-N 4-methyl-2-(7H-purin-6-ylsulfanyl)-1,3-thiazole Chemical compound CC=1N=C(SC1)SC1=C2NC=NC2=NC=N1 TZVUUWYPKMTQDF-UHFFFAOYSA-N 0.000 description 1
- NLHAIPFBNQZTMY-UHFFFAOYSA-N 4-methyl-3h-1,3-thiazole-2-thione Chemical compound CC1=CSC(S)=N1 NLHAIPFBNQZTMY-UHFFFAOYSA-N 0.000 description 1
- OVONXEQGWXGFJD-UHFFFAOYSA-N 4-sulfanylidene-1h-pyrimidin-2-one Chemical compound SC=1C=CNC(=O)N=1 OVONXEQGWXGFJD-UHFFFAOYSA-N 0.000 description 1
- WPFIUSIPZYAMQO-UHFFFAOYSA-N 6-(6-chloropyridazin-3-yl)sulfanyl-7h-purine Chemical compound N1=NC(Cl)=CC=C1SC1=NC=NC2=C1NC=N2 WPFIUSIPZYAMQO-UHFFFAOYSA-N 0.000 description 1
- IMRVCPDZWJBKNB-UHFFFAOYSA-N 6-(7H-purin-6-ylsulfanyl)-1H-pyrimidin-2-one Chemical compound OC1=NC=CC(=N1)SC1=C2NC=NC2=NC=N1 IMRVCPDZWJBKNB-UHFFFAOYSA-N 0.000 description 1
- ZKBQDFAWXLTYKS-UHFFFAOYSA-N 6-Chloro-1H-purine Chemical compound ClC1=NC=NC2=C1NC=N2 ZKBQDFAWXLTYKS-UHFFFAOYSA-N 0.000 description 1
- CYNPVASKNZLTEI-UHFFFAOYSA-N 6-[(2-amino-7H-purin-6-yl)sulfanyl]-7H-purin-2-amine Chemical compound NC1=NC(=C2NC=NC2=N1)SC1=C2NC=NC2=NC(=N1)N CYNPVASKNZLTEI-UHFFFAOYSA-N 0.000 description 1
- VNEUBZWRBUSOCS-UHFFFAOYSA-N 6-[(5-nitro-1H-imidazol-4-yl)sulfanyl]-7H-purine Chemical compound [O-][N+](=O)C1=C(NC=N1)SC1=C2NC=NC2=NC=N1 VNEUBZWRBUSOCS-UHFFFAOYSA-N 0.000 description 1
- MFNMOAZCBOVVIO-UHFFFAOYSA-N 6-[5-nitro-3-[(4-nitrophenyl)methyl]imidazol-4-yl]sulfanyl-7H-purin-2-amine Chemical compound NC1=NC(SC2=C(N=CN2CC2=CC=C(C=C2)[N+]([O-])=O)[N+]([O-])=O)=C2NC=NC2=N1 MFNMOAZCBOVVIO-UHFFFAOYSA-N 0.000 description 1
- CQYPNVKLVHHOSJ-UHFFFAOYSA-N 6-iodo-7h-purin-2-amine Chemical compound NC1=NC(I)=C2NC=NC2=N1 CQYPNVKLVHHOSJ-UHFFFAOYSA-N 0.000 description 1
- OCIGORGMGBXYBY-UHFFFAOYSA-N 6-pyridin-2-ylsulfanyl-7h-purine Chemical compound N=1C=NC=2N=CNC=2C=1SC1=CC=CC=N1 OCIGORGMGBXYBY-UHFFFAOYSA-N 0.000 description 1
- MAXASMOQGRYTTH-UHFFFAOYSA-N 6-pyrimidin-4-ylsulfanyl-7H-purine Chemical compound N1=CN=C(C=C1)SC1=C2NC=NC2=NC=N1 MAXASMOQGRYTTH-UHFFFAOYSA-N 0.000 description 1
- VVIAGPKUTFNRDU-UHFFFAOYSA-N 6S-folinic acid Natural products C1NC=2NC(N)=NC(=O)C=2N(C=O)C1CNC1=CC=C(C(=O)NC(CCC(O)=O)C(O)=O)C=C1 VVIAGPKUTFNRDU-UHFFFAOYSA-N 0.000 description 1
- 208000032791 BCR-ABL1 positive chronic myelogenous leukemia Diseases 0.000 description 1
- 208000010833 Chronic myeloid leukaemia Diseases 0.000 description 1
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
- MPJKWIXIYCLVCU-UHFFFAOYSA-N Folinic acid Natural products NC1=NC2=C(N(C=O)C(CNc3ccc(cc3)C(=O)NC(CCC(=O)O)CC(=O)O)CN2)C(=O)N1 MPJKWIXIYCLVCU-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 208000033761 Myelogenous Chronic BCR-ABL Positive Leukemia Diseases 0.000 description 1
- WZTXVZHAZAKBTJ-UHFFFAOYSA-N NC1=NC(=C2NC=NC2=N1)SC1=C2NC=NC2=NC=N1 Chemical compound NC1=NC(=C2NC=NC2=N1)SC1=C2NC=NC2=NC=N1 WZTXVZHAZAKBTJ-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 239000005557 antagonist Substances 0.000 description 1
- LMEKQMALGUDUQG-UHFFFAOYSA-N azathioprine Chemical compound CN1C=NC([N+]([O-])=O)=C1SC1=NC=NC2=C1NC=N2 LMEKQMALGUDUQG-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000973 chemotherapeutic effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- VVIAGPKUTFNRDU-ABLWVSNPSA-N folinic acid Chemical compound C1NC=2NC(N)=NC(=O)C=2N(C=O)C1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 VVIAGPKUTFNRDU-ABLWVSNPSA-N 0.000 description 1
- 235000008191 folinic acid Nutrition 0.000 description 1
- 239000011672 folinic acid Substances 0.000 description 1
- 239000012433 hydrogen halide Substances 0.000 description 1
- 229910000039 hydrogen halide Inorganic materials 0.000 description 1
- 229960001691 leucovorin Drugs 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229940083251 peripheral vasodilators purine derivative Drugs 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003212 purines Chemical class 0.000 description 1
- WHMDPDGBKYUEMW-UHFFFAOYSA-N pyridine-2-thiol Chemical compound SC1=CC=CC=N1 WHMDPDGBKYUEMW-UHFFFAOYSA-N 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
- H01F37/005—Fixed inductances not covered by group H01F17/00 without magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/002—Arrangements provided on the transformer facilitating its transport
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Transformer Cooling (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Coils Of Transformers For General Uses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2216325A DE2216325C3 (de) | 1972-04-05 | 1972-04-05 | Filterdrossel für hohe elektrische Spannungen und große Leistungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO131106B true NO131106B (xx) | 1974-12-23 |
| NO131106C NO131106C (xx) | 1975-04-02 |
Family
ID=5841045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO1337/73A NO131106C (xx) | 1972-04-05 | 1973-04-02 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3818400A (xx) |
| BE (1) | BE797652A (xx) |
| CA (1) | CA999048A (xx) |
| CH (1) | CH551080A (xx) |
| DE (1) | DE2216325C3 (xx) |
| DK (1) | DK142095C (xx) |
| FR (1) | FR2179067B1 (xx) |
| GB (1) | GB1424696A (xx) |
| NL (1) | NL7304658A (xx) |
| NO (1) | NO131106C (xx) |
| SE (1) | SE381949B (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE807944A (fr) * | 1973-11-28 | 1974-05-28 | Elphiac Sa | Self a saturation brusque generatrice d'harmoniques pour dispositif multiplicateur de frequence |
| DE2845463C3 (de) * | 1978-10-19 | 1982-02-25 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | Lastwähler für Stufentransformatoren |
| EP1895550A1 (en) * | 2006-08-30 | 2008-03-05 | Abb Research Ltd. | A device for suppressing high frequency current or/and voltage components |
| DE102012101988B4 (de) * | 2012-03-09 | 2014-07-17 | Maschinenfabrik Reinhausen Gmbh | Anordnung einer Luft-Drosselspule und eines Umschalters sowie Verfahren zur Herstellung einer solchen Anordnung |
| DE102014100949B4 (de) * | 2014-01-28 | 2016-12-29 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter nach dem Reaktorschaltprinzip |
| DE102017215460A1 (de) * | 2017-09-04 | 2019-03-07 | Siemens Aktiengesellschaft | Anordnung zum Anschluss an ein Hochspannungsnetz mit einstellbarer Impedanz |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1859969A (en) * | 1929-05-18 | 1932-05-24 | Condit Electrical Mfg Corp | Unitary transforming and circuit interrupting apparatus |
| US2294712A (en) * | 1939-08-04 | 1942-09-01 | Gen Electric | Transformer tap changer arrangement |
| DE912366C (de) * | 1941-05-06 | 1954-05-28 | Aeg | Regeltransformator |
| US2560002A (en) * | 1945-07-27 | 1951-07-10 | Allis Chalmers Mfg Co | Voltage regulating control and apparatus |
| US2668274A (en) * | 1950-03-28 | 1954-02-02 | Oerlikon Maschf | Voltage transformer for hightension mains |
| US3175148A (en) * | 1959-01-30 | 1965-03-23 | Mc Graw Edison Co | Stationary induction apparatus unit |
-
1972
- 1972-04-05 DE DE2216325A patent/DE2216325C3/de not_active Expired
-
1973
- 1973-04-02 BE BE129542A patent/BE797652A/xx not_active IP Right Cessation
- 1973-04-02 NO NO1337/73A patent/NO131106C/no unknown
- 1973-04-03 FR FR7312012A patent/FR2179067B1/fr not_active Expired
- 1973-04-04 DK DK180773A patent/DK142095C/da not_active IP Right Cessation
- 1973-04-04 GB GB1609773A patent/GB1424696A/en not_active Expired
- 1973-04-04 CA CA167,929A patent/CA999048A/en not_active Expired
- 1973-04-04 NL NL7304658A patent/NL7304658A/xx not_active Application Discontinuation
- 1973-04-04 SE SE7304752A patent/SE381949B/xx unknown
- 1973-04-05 CH CH491373A patent/CH551080A/xx not_active IP Right Cessation
- 1973-04-05 US US00348090A patent/US3818400A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2216325A1 (de) | 1973-11-08 |
| SE381949B (sv) | 1975-12-22 |
| FR2179067A1 (xx) | 1973-11-16 |
| CA999048A (en) | 1976-10-26 |
| CH551080A (de) | 1974-06-28 |
| DK142095B (da) | 1980-08-25 |
| GB1424696A (en) | 1976-02-11 |
| DE2216325C3 (de) | 1975-02-13 |
| DK142095C (da) | 1981-01-19 |
| NO131106C (xx) | 1975-04-02 |
| FR2179067B1 (xx) | 1978-06-30 |
| US3818400A (en) | 1974-06-18 |
| BE797652A (fr) | 1973-07-31 |
| NL7304658A (xx) | 1973-10-09 |
| DE2216325B2 (de) | 1974-06-27 |
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