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公开(公告)号：US2321354A
公开(公告)日：1943-06-08
申请号：US43554142
申请日：1942-03-20
Applicant: RADIO PATENTS CORP
Inventor： ARTHUR BELL DAVID , HOSMER DAVIE OWEN
IPC: H03C3/04
CPC classification number: H03C3/04
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