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公开(公告)号：US1930468A
公开(公告)日：1933-10-17
申请号：US55321231
申请日：1931-07-25
Applicant: STANDARD IG CO
Inventor： MARTIN MUELLER-CUNRADI , ROBERT WERNER
IPC: C10G73/44
CPC classification number: C10G73/44
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