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公开(公告)号：US2616891A
公开(公告)日：1952-11-04
申请号：US19064350
申请日：1950-10-17
Applicant: BAYER AG
Inventor： SCHWECHTEN HEINZ W , JOSEF SINGER
IPC: C09B6/00
CPC classification number: C09B6/00
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