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公开(公告)号:US2348462A
公开(公告)日:1944-05-09
申请号:US45115442
申请日:1942-07-16
Applicant: WESTERN ELECTRIC CO
Inventor: FRAMBURG JR CHARLES A , LARSON ELBERT W
IPC: H01C7/00
CPC classification number: H01C7/00 , Y10T29/49087
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公开(公告)号:US2172444A
公开(公告)日:1939-09-12
申请号:US20240038
申请日:1938-04-16
Applicant: WESTERN ELECTRIC CO
Inventor: LARSON ELBERT W , MCCAIN CECIL C
IPC: B42F17/18
CPC classification number: B42F17/18
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公开(公告)号:US2790299A
公开(公告)日:1957-04-30
申请号:US52964455
申请日:1955-08-22
Applicant: WESTERN ELECTRIC CO
Inventor: RANDALL GILLIS , LARSON ELBERT W , STINE RALPH M
CPC classification number: H01B13/0235 , D07B3/005 , D07B2201/2035
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