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公开(公告)号：US2762654A
公开(公告)日：1956-09-11
申请号：US29656452
申请日：1952-07-01
Applicant: GEN MOTORS CORP
Inventor： PURCHAS JR WILLIAM J , VICKERS JAMES R
CPC classification number: F02M57/02 , F02M61/08 , F02M2700/078
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