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公开(公告)号：US2773844A
公开(公告)日：1956-12-11
申请号：US36141653
申请日：1953-06-12
Applicant: SHELL DEV
Inventor： CARLSON GEORGE J , GUM CLARENCE R
IPC: B01J23/50
CPC classification number: B01J23/50
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公开(公告)号：CA541987A
公开(公告)日：1957-06-04
申请号：CA541987D
Applicant: SHELL DEV
Inventor： GUM CLARENCE R , CARLSON GEORGE J
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