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11.Ortho: ortho'-dihydroxy-azo-dyestuffs and complex metal compounds thereof 失效
Title translation: 正己醛:邻二羟基偶氮染料及其复合金属化合物-
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公开(公告)号:US2676958A
公开(公告)日:1954-04-27
申请号:US21519151
申请日:1951-03-12
Applicant: CIBA LTD
Inventor: WALTER HANHART
IPC: C09B33/153
CPC classification number: C09B33/153
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公开(公告)号:US2519651A
公开(公告)日:1950-08-22
申请号:US68293146
申请日:1946-07-11
Applicant: CIBA LTD
Inventor: WALTER HANHART
IPC: C09B43/14
CPC classification number: C09B43/14
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