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公开(公告)号：US2106805A
公开(公告)日：1938-02-01
申请号：US4255435
申请日：1935-09-28
Applicant: BELL TELEPHONE LABOR INC , AMERICAN TELEPHONE & TELEGRAPH
Inventor： LANG WILMARTH Y , WATSON EDWARD F
IPC: H01H67/26
CPC classification number: H01H67/26
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