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公开(公告)号：US2685199A
公开(公告)日：1954-08-03
申请号：US18737650
申请日：1950-09-29
Applicant: STANDARD OIL DEV CO
Inventor： WILSON JAMES A , BRENNEMAN ALBERT E
IPC: G01M15/04
CPC classification number: G01M15/044
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