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公开(公告)号：DE1768321A1
公开(公告)日：1971-09-30
申请号：DE1768321
申请日：1968-04-30
Applicant: HOECHST AG
Inventor： SCHWENK ULLRICH DR , BECKER ADOLF
IPC: A47B88/04 , C07C249/02 , C07C251/08
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