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公开(公告)号：DE908013C
公开(公告)日：1954-04-01
申请号：DEB0013155
申请日：1950-12-23
Applicant: BASF AG
Inventor： RAICHLE DIPL-ING LUDWIG , WITTMANN DIPL-ING ERNST
IPC: C01B3/16
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