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公开(公告)号：US3330828A
公开(公告)日：1967-07-11
申请号：US44787665
申请日：1965-04-13
Applicant: BAYER AG
Inventor： GERHARD GROGLER , ERWIN WINDEMUTH
IPC: C08G18/02
CPC classification number: C08G18/022
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