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公开(公告)号：US2869418A
公开(公告)日：1959-01-20
申请号：US57030856
申请日：1956-03-08
Applicant: TEXAS CO
Inventor： MILLER CARL P , ALLAN JAMIESON
IPC: G01J3/40
CPC classification number: G01J3/40 , Y10S248/913
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