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公开(公告)号：US3512918A
公开(公告)日：1970-05-19
申请号：US3512918D
申请日：1966-06-29
Applicant: BASF AG
Inventor： ENDRES HORST , LEPPMEIER FRANZ , ERDMANN HANS
IPC: C14C3/18
CPC classification number: C14C3/18
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