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公开(公告)号：US2894105A
公开(公告)日：1959-07-07
申请号：US61519356
申请日：1956-10-10
Applicant: GEN MOTORS CORP
Inventor： LONG GEORGE B , CLEVER RAY E
CPC classification number: H01H89/04 , G05D23/1913 , G05D23/24 , H01H37/50
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