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公开(公告)号：US2755663A
公开(公告)日：1956-07-24
申请号：US34245253
申请日：1953-03-16
Applicant: GEN MOTORS CORP
Inventor： SMITH VICTOR C , LECKY ALBERT S , D ALLEVA BASIL A
IPC: G01M15/02
CPC classification number: G01M15/02
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