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公开(公告)号：US2085077A
公开(公告)日：1937-06-29
申请号：US5443435
申请日：1935-12-14
Applicant: BELL TELEPHONE LABOR INC
Inventor： FOX ARTHUR L , HASKELL FREDERIC V , STURZENEGGER WILLIAM C
IPC: H02G7/12
CPC classification number: H02G7/12 , Y10S116/33
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