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公开(公告)号：US1955023A
公开(公告)日：1934-04-17
申请号：US65637433
申请日：1933-02-11
Applicant: STANDARD IG CO
Inventor： HANS ROOS , EMIL SCHWAMBERGER
IPC: C10C1/18
CPC classification number: C10C1/18
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