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公开(公告)号：US2766615A
公开(公告)日：1956-10-16
申请号：US37744253
申请日：1953-08-31
Applicant: STANDARD OIL CO
Inventor： FAY PHILIP S , TUPA ROBERT C , DECKER RAYMOND R
IPC: G01N1/02
CPC classification number: G01N1/02
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