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公开(公告)号：US2782628A
公开(公告)日：1957-02-26
申请号：US36818453
申请日：1953-07-15
Applicant: STANDARD OIL CO
Inventor： JACOBS ROBERT B , WILLIAMS CECIL E
IPC: G01N7/14
CPC classification number: G01N7/14
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