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公开(公告)号：US3002372A
公开(公告)日：1961-10-03
申请号：US72499558
申请日：1958-03-31
Applicant: STANDARD OIL CO
Inventor： BULKLEY WILLIAM L , DAN SMITH
IPC: G01N25/14
CPC classification number: G01N25/14
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