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公开(公告)号：US2073060A
公开(公告)日：1937-03-09
申请号：US70911634
申请日：1934-01-31
Applicant: RCA CORP
Inventor： HARDING ARTHUR T , DUNLEAVEY FRANK S
CPC classification number: H01G9/00 , H01G9/02 , H01G11/58 , Y02E60/13 , Y10T29/417
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