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公开(公告)号：CH510775A
公开(公告)日：1971-04-15
申请号：CH1143269
申请日：1969-07-25
Applicant: HOECHST AG
Inventor： DIERY HELMUT DR , RITTNER SIEGBERT DR , MANFRED SEIDEL , KIEFER BERNHARD DR
IPC: D06M15/423 , D06M13/40
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