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公开(公告)号：US3409596A
公开(公告)日：1968-11-05
申请号：US42507265
申请日：1965-01-12
Applicant: BAYER AG
Inventor： OTTO UNGER , GUNTHER NAWRATH , GUNTHER NISCHK
IPC: C08G69/42
CPC classification number: C08G69/42
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