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公开(公告)号：US2429601A
公开(公告)日：1947-10-28
申请号：US51131043
申请日：1943-11-22
Applicant: BELL TELEPHONE LABOR INC
Inventor： BISKEBORN MERLE C , FOX ARTHUR G
IPC: H01Q3/18
CPC classification number: H01Q3/18
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