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公开(公告)号：US2904769A
公开(公告)日：1959-09-15
申请号：US36720853
申请日：1953-07-10
Applicant: GEN MOTORS CORP
Inventor： RAYMOND SAMPSON LAWRENCE , LAMPMAN GEORGE W
IPC: H01T13/06
CPC classification number: H01T13/06 , Y10T403/7037 , Y10T403/7073
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