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公开(公告)号：US2622062A
公开(公告)日：1952-12-16
申请号：US9790249
申请日：1949-06-08
Applicant: TIDE WATER ASSOCIATED OIL COMP
Inventor： PUTT JOHN W , SMITH JR JOHN O , MCLEAN JOHN O
IPC: G01N1/18
CPC classification number: G01N1/18
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