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公开(公告)号：US2006199A
公开(公告)日：1935-06-25
申请号：US57222831
申请日：1931-10-30
Applicant: STANDARD IG CO
Inventor： FULTON STEWART C , VLADIMIR KALICHEVSKY
IPC: C10C3/02
CPC classification number: C10C3/02
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