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公开(公告)号：US3268548A
公开(公告)日：1966-08-23
申请号：US9217261
申请日：1961-02-28
Applicant: HOECHST AG
Inventor： JOHANNES HAYNA , HARTMUT SPRINGER , ERICH SCHINZEL
IPC: C09B62/503 , C09B62/517
CPC classification number: C09B62/503 , C09B62/517
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