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公开(公告)号：US2712363A
公开(公告)日：1955-07-05
申请号：US22896551
申请日：1951-05-29
Applicant: TIDE WATER ASSOCIATED OIL COMP
Inventor： CLYDE VAUGHN SAMUEL , DONOVAN GEORGE C
CPC classification number: F16N7/06 , G01N33/2888
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