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公开(公告)号：US2869986A
公开(公告)日：1959-01-20
申请号：US49813855
申请日：1955-03-31
Applicant: SHELL DEV
Inventor： ANDERSON ELMER A , GORDON FOSTER ELTON , GABLE CHARLES M , HOOD GEORGE C
CPC classification number: C01G41/00 , B01J23/30 , B01J23/92 , C07C29/48 , Y02P20/584 , C07C31/225 , C07C29/04
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