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公开(公告)号：US2453837A
公开(公告)日：1948-11-16
申请号：US50631643
申请日：1943-10-15
Applicant: STANDARD OIL DEV CO
Inventor： FISHER EDWARD J , FRANKLIN WILLIAM B , SMITH DELMAS A
CPC classification number: B01J19/242 , B01J14/00 , B01J2219/0011 , C07C2/62
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