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公开(公告)号：US3450184A
公开(公告)日：1969-06-17
申请号：US3450184D
申请日：1966-07-18
Applicant: BAYER AG
Inventor： SCHNORING HILDEGARD , CLASSE WILLY , PAMPUS GOTTFRIED , SCHON NIKOLAUS , WITTE JOSEF
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