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公开(公告)号：US2893700A
公开(公告)日：1959-07-07
申请号：US53561155
申请日：1955-09-21
Applicant: GEN MOTORS CORP
Inventor： BOYLAN HENRY W , DOANE HARRY C , MCMANAMA ARMAN E
CPC classification number: B60H1/0005 , B60H1/3204
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