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公开(公告)号：US2520074A
公开(公告)日：1950-08-22
申请号：US71787046
申请日：1946-12-23
Applicant: GEN MOTORS CORP
Inventor： WERNIG JAMES H , CRIPPS ALBERT A
CPC classification number: B62D25/04 , B62D25/081
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