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公开(公告)号：US2690334A
公开(公告)日：1954-09-28
申请号：US32245452
申请日：1952-11-25
Applicant: GEN MOTORS CORP
Inventor： BISHOP ROLAND R , MAURICE OLLEY
CPC classification number: B60G11/44 , B60G11/04 , B60G2204/4504
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