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公开(公告)号：US2842267A
公开(公告)日：1958-07-08
申请号：US51027855
申请日：1955-05-23
Applicant: STANDARD OIL CO
Inventor： SHIRE JR WILLIAM A , SMELKO JOSEPH A
CPC classification number: F02M37/20 , F02M37/221
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