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公开(公告)号：US2485316A
公开(公告)日：1949-10-18
申请号：US57074044
申请日：1944-12-30
Applicant: STANDARD OIL DEV CO
Inventor： ROBBINS JR LEROY V , LUENING WILLIAM D
CPC classification number: B01J8/002 , F16K24/00 , Y10T137/4259
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