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公开(公告)号：US2084511A
公开(公告)日：1937-06-22
申请号：US68802933
申请日：1933-09-02
Applicant: STANDARD IG CO
Inventor： SMALL JAMES K
IPC: B01J27/185 , C01B3/40
CPC classification number: B01J27/1853 , C01B3/40 , C01B2203/1047 , C01B2203/1052 , Y02P20/52
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