NO121832B - - Google Patents

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Publication number
NO121832B
NO121832B NO165376A NO16537666A NO121832B NO 121832 B NO121832 B NO 121832B NO 165376 A NO165376 A NO 165376A NO 16537666 A NO16537666 A NO 16537666A NO 121832 B NO121832 B NO 121832B
Authority
NO
Norway
Prior art keywords
naphthyl
group
formula
compounds
phenyl
Prior art date
Application number
NO165376A
Other languages
English (en)
Norwegian (no)
Inventor
R Meyer
E Maeder
L Guglielmetti
A Siegrist
P Liechti
Original Assignee
Ciba Geigy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ciba Geigy filed Critical Ciba Geigy
Publication of NO121832B publication Critical patent/NO121832B/no

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
    • C07D213/16—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing only one pyridine ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/04—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to the ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/18—Benzimidazoles; Hydrogenated benzimidazoles with aryl radicals directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/26—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
    • C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
    • C07D241/40—Benzopyrazines
    • C07D241/42—Benzopyrazines with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
    • C07D249/04—1,2,3-Triazoles; Hydrogenated 1,2,3-triazoles
    • C07D249/06—1,2,3-Triazoles; Hydrogenated 1,2,3-triazoles with aryl radicals directly attached to ring atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
    • C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/16—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms condensed with carbocyclic rings or ring systems
    • C07D249/18—Benzotriazoles
    • C07D249/20—Benzotriazoles with aryl radicals directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/16—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms condensed with carbocyclic rings or ring systems
    • C07D249/22—Naphthotriazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/16—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms condensed with carbocyclic rings or ring systems
    • C07D249/22—Naphthotriazoles
    • C07D249/24—Naphthotriazoles with stilbene radicals directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/14—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom
    • C07D251/24—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to three ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D253/00—Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group C07D251/00
    • C07D253/02—Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group C07D251/00 not condensed with other rings
    • C07D253/06—1,2,4-Triazines
    • C07D253/065—1,2,4-Triazines having three double bonds between ring members or between ring members and non-ring members
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
    • C07D263/54—Benzoxazoles; Hydrogenated benzoxazoles
    • C07D263/56—Benzoxazoles; Hydrogenated benzoxazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
    • C07D263/57—Aryl or substituted aryl radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D271/00—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
    • C07D271/02—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms not condensed with other rings
    • C07D271/06—1,2,4-Oxadiazoles; Hydrogenated 1,2,4-oxadiazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D271/00—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
    • C07D271/02—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms not condensed with other rings
    • C07D271/10—1,3,4-Oxadiazoles; Hydrogenated 1,3,4-oxadiazoles
    • C07D271/107—1,3,4-Oxadiazoles; Hydrogenated 1,3,4-oxadiazoles with two aryl or substituted aryl radicals attached in positions 2 and 5
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
    • C07D277/62—Benzothiazoles
    • C07D277/64—Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
    • C07D277/66—Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2 with aromatic rings or ring systems directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
    • C07D285/01—Five-membered rings
    • C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
    • C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
    • C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
NO165376A 1965-10-28 1966-10-27 NO121832B (nl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1490265A CH484918A (de) 1965-10-28 1965-10-28 Verfahren zur Herstellung heterocyclischer, Aethylendoppelbindungen enthaltender Verbindungen
CH964966A CH517101A (de) 1965-10-28 1966-07-04 Verfahren zur Herstellung heterocyclischer, Äthylendoppelbindungen enthaltender Verbindungen
US6796770A 1970-08-28 1970-08-28
US00295405A US3849163A (en) 1965-10-28 1972-10-05 Process for the optical brightening of organic materials

Publications (1)

Publication Number Publication Date
NO121832B true NO121832B (nl) 1971-04-19

Family

ID=27429238

Family Applications (2)

Application Number Title Priority Date Filing Date
NO165375A NO126018B (nl) 1965-10-28 1966-10-27
NO165376A NO121832B (nl) 1965-10-28 1966-10-27

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO165375A NO126018B (nl) 1965-10-28 1966-10-27

Country Status (13)

Country Link
US (6) US3758462A (nl)
BE (1) BE688963A (nl)
BR (1) BR6684095D0 (nl)
CH (2) CH484918A (nl)
CS (1) CS154567B2 (nl)
DE (4) DE1594833B2 (nl)
FI (1) FI50336C (nl)
FR (1) FR1499546A (nl)
GB (1) GB1131484A (nl)
IL (3) IL40374A (nl)
NL (4) NL6615211A (nl)
NO (2) NO126018B (nl)
SE (4) SE329992B (nl)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880841A (en) * 1971-03-18 1975-04-29 Sandoz Ltd Triazolyl ethenyl phenylene derivatives
US3849155A (en) * 1971-06-18 1974-11-19 Ciba Geigy Ag Brightening of polyacrylonitrile wet tow
IT966203B (it) * 1971-10-07 1974-02-11 Sbiancanti alchilbenzossazolilstil benici
CH554911A (de) * 1971-12-30 1974-10-15 Ciba Geigy Ag Verwendung ausserhalb der textilindustrie von neuen 4,4'divinyldiphenyl-verbindungen als optische aufhellmittel fuer organische materialien.
CH567054A5 (nl) * 1972-03-08 1975-09-30 Ciba Geigy Ag
US3926963A (en) * 1973-04-20 1975-12-16 Ciba Geigy Ag New benzoxazolylstilbenes as optical brighteners
US3912697A (en) * 1973-04-27 1975-10-14 Eastman Kodak Co Light-sensitive polymers
US3993645A (en) * 1973-05-29 1976-11-23 Sterling Drug Inc. Stilbene optical brighteners and compositions brightened therewith
GB1431589A (en) * 1973-07-13 1976-04-07 Smith Kline French Lab Ureas, thioureas and guanidines n,n-disubstituted by heterocyclo- alkylene and/or heterocycloalkylenethioalkylene groups
US4215125A (en) * 1973-07-13 1980-07-29 Smith Kline & French Laboratories Limited Pyridyl ureas, thioureas and guanidines
US4008224A (en) 1973-11-19 1977-02-15 Ciba-Geigy Corporation Process for the manufacture of cyano-substituted stilbene compounds
CH774974A4 (nl) * 1974-06-06 1976-02-13
DE2525682A1 (de) * 1974-06-12 1976-01-02 Ciba Geigy Ag Herstellung von sulfogruppenhaltigen stilbenverbindungen
DE2525683A1 (de) * 1974-06-12 1976-01-02 Ciba Geigy Ag Sulfogruppenhaltige heterocyclen
US3951654A (en) * 1974-06-20 1976-04-20 Xerox Corporation Method for enhancement in the rate and efficiency of photodischarge of electrostatographic imaging members comprising phthalocyanine
CH597225A5 (nl) * 1974-08-14 1978-03-31 Ciba Geigy Ag
CH598307A5 (nl) * 1974-08-14 1978-04-28 Ciba Geigy Ag
CH598309A5 (nl) * 1974-08-14 1978-04-28 Ciba Geigy Ag
US4172045A (en) * 1974-09-09 1979-10-23 Ciba-Geigy Corporation Process for the manufacture of 2-stilbenyl-1,2,3-triazoles which contain carboxyl groups, novel 2-stilbenyl-1,2,3-triazoles which contain carboxyl groups and the use thereof as fluorescent brighteners
DE2525610C2 (de) * 1975-06-09 1985-04-11 Henkel KGaA, 4000 Düsseldorf Kationische Avivagemittel mit verbesserter Kaltwasserlöslichkeit
DE2724408A1 (de) * 1976-06-02 1977-12-15 Ciba Geigy Ag V-triazole
LU76467A1 (nl) * 1976-12-23 1978-07-10
DE2712686C2 (de) * 1977-03-23 1986-09-04 Bayer Ag, 5090 Leverkusen 4-Triazinyl-4'-benzoxazolyl- bzw. 4'-phenyl-stilben-derivate
LU77024A1 (nl) * 1977-03-25 1978-11-03
DE2730644A1 (de) * 1977-07-07 1979-01-25 Bayer Ag Fluoreszenz-farbstoffe
LU78483A1 (de) * 1977-11-10 1979-06-13 Ciba Geigy Ag Verfahren zur herstellung von benzoxazolyl-phenylstilbenen
LU78484A1 (de) * 1977-11-10 1979-06-13 Ciba Geigy Ag Verfahren zur herstellung von benzoxazolyl-phenyl-stilbenen
DE2833470A1 (de) * 1978-07-29 1980-02-07 Hoechst Ag 1,3,4-oxadiazolon(2)-verbindungen und verfahren zu deren herstellung
US4297234A (en) * 1979-05-17 1981-10-27 Ciba-Geigy Corporation Benzoxazolyl-stilbenes
US4381101A (en) * 1981-02-23 1983-04-26 Halliburton Company Draft gear removal apparatus
FR2539509B1 (fr) * 1983-01-13 1986-08-22 Sandoz Sa Procede pour le marquage des peaux ayant subi un tannage mineral
US4500533A (en) * 1983-06-22 1985-02-19 Eli Lilly And Company 2,4,5-Triaryl pyrimidines and a method of treating pain, fever, thrombosis, inflammation and arthritis
DE3337024A1 (de) * 1983-10-12 1985-04-25 Hoechst Ag, 6230 Frankfurt Lichtempfindliche, trichlormethylgruppen aufweisende verbindungen, verfahren zu ihrer herstellung und diese verbindungen enthaltendes lichtempfindliches gemisch
DE3706880A1 (de) * 1987-03-04 1988-09-15 Hoechst Ag 4-chloroxazol-derivate, verfahren zu ihrer herstellung und ihre verwendung
US5216157A (en) * 1988-03-08 1993-06-01 Egis Gyogyszergyar 1,4,Dihydro-pyridine intermediates
JP2832028B2 (ja) * 1989-04-20 1998-12-02 キヤノン株式会社 化合物およびこれを含む液晶組成物およびこれを使用した液晶素子
WO2001010854A1 (en) * 1999-08-09 2001-02-15 Ciba Specialty Chemicals Holding Inc. Benzothiazole compounds and their use as optical brighteners
WO2007087429A2 (en) * 2006-01-25 2007-08-02 Synta Pharmaceuticals Corp. Phenyl and pyridyl compounds for inflammation and immune-related uses
US8367680B2 (en) 2008-03-28 2013-02-05 Wisconsin Alumni Research Foundation Antibacterial small molecules and methods for their synthesis
AU2009295701B2 (en) 2008-09-23 2014-07-24 Wista Laboratories Ltd. Ligands for aggregated tau molecules
CN108286186B (zh) * 2018-01-09 2020-05-26 上海雅运新材料有限公司 一种新型低温氧漂催化剂及其制备方法和应用
WO2020199191A1 (zh) * 2019-04-04 2020-10-08 复旦大学 长余辉发光材料
CN111635523A (zh) * 2020-06-03 2020-09-08 河北科技大学 以三聚喹唑啉为结点的二维共价有机框架材料及其制备方法和应

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL265443A (nl) * 1960-06-02
GB944265A (en) * 1961-03-31 1963-12-11 Gen Aniline & Film Corp Naphthotriazole brightening agents
FR1345260A (fr) * 1961-12-04 1963-12-06 Ici Ltd Nouvelles polycyclo-triazines substituées, production et applications
BE669951A (nl) * 1964-09-23 1900-01-01
FR1479071A (nl) * 1965-05-10 1967-07-19
CH477469A (de) * 1965-12-02 1969-08-31 Ciba Geigy Verfahren zur Herstellung heterocyclischer Stilbenverbindungen

Also Published As

Publication number Publication date
BE688963A (nl) 1967-04-27
NL6615215A (nl) 1967-05-02
US3725395A (en) 1973-04-03
US3732221A (en) 1973-05-08
NO126018B (nl) 1972-12-11
FI50336C (fi) 1976-02-10
IL40375A (en) 1972-12-29
US3781278A (en) 1973-12-25
DE1670394A1 (de) 1972-03-02
DE1670394B2 (de) 1982-04-08
FI50336B (nl) 1975-10-31
US3758462A (en) 1973-09-11
IL26742A (en) 1972-12-29
NL6615214A (nl) 1967-05-02
SE340436B (nl) 1971-11-22
BR6684095D0 (pt) 1973-12-26
SE347746B (nl) 1972-08-14
DE1594833A1 (de) 1971-01-28
SE329992B (nl) 1970-11-02
CH484918A (de) 1970-01-31
DE1594834B1 (de) 1971-11-11
DE1670394C3 (de) 1982-11-18
DE1594833B2 (de) 1973-07-12
NL6615211A (nl) 1967-05-02
CH517101A (de) 1971-12-31
SE334856B (nl) 1971-05-10
NL6615213A (nl) 1967-05-02
DE1594833C3 (nl) 1974-02-14
US3711472A (en) 1973-01-16
GB1131484A (en) 1968-10-23
US3849163A (en) 1974-11-19
DE1594832B1 (de) 1971-08-12
IL40374A (en) 1972-12-29
FR1499546A (fr) 1967-10-27
CS154567B2 (nl) 1974-04-30

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