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公开(公告)号：US1579121A
公开(公告)日：1926-03-30
申请号：US4796925
申请日：1925-08-03
Applicant: BASF AG
Inventor： HANS KRZIKALLA , HANS KAMMERER
IPC: C09B33/147
CPC classification number: C09B33/147 , Y10S8/917
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