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公开(公告)号：US2750266A
公开(公告)日：1956-06-12
申请号：US43919254
申请日：1954-06-25
Applicant: CHEMICAL CONSTRUCTION CORP
Inventor： ROBERTS EDWARD S , WIEDEMAN OSCAR F , SAMUEL STRELZOFF
CPC classification number: C01C3/0225 , B01J4/001 , B01J12/007 , B01J35/02 , B01J2219/00155
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