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公开(公告)号：US3236913A
公开(公告)日：1966-02-22
申请号：US21809462
申请日：1962-08-20
Applicant: HOECHST AG
Inventor： GERHARD PFEIFFER , HELMUT SCHMIDT , KURT STETZELBERG , FRITZ WINKLER
CPC classification number: D06P1/6138 , D06P1/12 , D06P1/122 , D06P1/52 , D06P1/5228 , D06P1/58
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