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公开(公告)号：DE948348C
公开(公告)日：1956-08-30
申请号：DEB0033512
申请日：1954-11-26
Applicant: BASF AG
Inventor： BECKE DR FRIEDRICH , LIBOWITZKY DR HERBERT , MARKGRAF OTTO , KLUG MAX
IPC: C09B51/00
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