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1.发明授权Monazo dyestuffs containing 4-hydroxy-6-methyl and 6-hydroxy - 4 - methyl-pyrazolo(3,4-b)pyridine groups 失效包含4-羟基-6-甲基和6-羟基-4-甲基 - 吡唑并（3,4-B）吡啶基的MONAZO DYESTUFFS
公开(公告)号：US3420813A
公开(公告)日：1969-01-07
申请号：US3420813D
申请日：1967-05-25
Applicant: SANDOZ AG
Inventor： MUELLER CURT , SENN OTTO
IPC: C09B29/033 , C09B29/36 , C09B29/08
CPC classification number: C09B29/0025 , C09B29/36
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