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公开(公告)号：US2091973A
公开(公告)日：1937-09-07
申请号：US2863035
申请日：1935-06-27
Applicant: GEN MOTORS CORP
Inventor： FESSLER ALBRA H , RUSSELL JR RALSTON
CPC classification number: H01T21/02 , B28B1/44 , B28B3/024 , Y10S425/044 , Y10S425/124
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