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公开(公告)号：US1751981A
公开(公告)日：1930-03-25
申请号：US71699624
申请日：1924-05-31
Applicant: PHILIPS NV
Inventor： DE JONG HENDRIK , LELY JR DIRK , RICHARD SHEPHERD
IPC: H01R13/05
CPC classification number: H01R13/052 , H01R24/28 , H01R2103/00
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