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公开(公告)号：US2953963A
公开(公告)日：1960-09-27
申请号：US41745254
申请日：1954-03-19
Applicant: STANDARD OIL CO
Inventor： BULKLEY WILLIAM L , ROBERT KREBS JOHN
IPC: G01J3/46
CPC classification number: G01J3/46
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