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公开(公告)号：US3471411A
公开(公告)日：1969-10-07
申请号：US3471411D
申请日：1967-09-18
Applicant: HOOKER CHEMICAL CORP
Inventor： BOWMAN RUSSELL A , WILSON BRUCE N
CPC classification number: B01J31/0212 , B01J2231/48
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