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公开(公告)号：US2671735A
公开(公告)日：1954-03-09
申请号：US17252850
申请日：1950-07-07
Applicant: BELL TELEPHONE LABOR INC
Inventor： GRISDALE RICHARD O , PFISTER ANTHONY C , TEAL GORDON K
IPC: H01B1/24
CPC classification number: H01B1/24 , Y10T428/30
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