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公开(公告)号：US3050035A
公开(公告)日：1962-08-21
申请号：US4612260
申请日：1960-07-29
Applicant: GEN MOTORS CORP
Inventor： WILKENS CARL E , KELLER JR MILLARD W
IPC: B60T13/57
CPC classification number: B60T13/57
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