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公开(公告)号：US3442843A
公开(公告)日：1969-05-06
申请号：US3442843D
申请日：1966-06-17
Applicant: BAYER AG
Inventor： KEBERLE WOLFGANG , DIETERICH DIETER
CPC classification number: C08G18/711 , C08G18/0804
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