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公开(公告)号：US2510061A
公开(公告)日：1950-06-06
申请号：US7188249
申请日：1949-01-21
Applicant: BELL TELEPHONE LABOR INC
Inventor： BRANSON DAVID E , LOCKE GEORGE A , MARSHALL TOLA A
CPC classification number: H04L12/14
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公开(公告)号：US2332451A
公开(公告)日：1943-10-19
申请号：US36640440
申请日：1940-11-20
Applicant: BELL TELEPHONE LABOR INC
Inventor： MARSHALL TOLA A
IPC: H04L12/26
CPC classification number: H04L43/50
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公开(公告)号：US2353055A
公开(公告)日：1944-07-04
申请号：US45897942
申请日：1942-09-19
Applicant: BELL TELEPHONE LABOR INC
Inventor： MARSHALL TOLA A
IPC: H04L12/00
CPC classification number: H04L12/00
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公开(公告)号：US1890523A
公开(公告)日：1932-12-13
申请号：US59554632
申请日：1932-02-27
Applicant: BELL TELEPHONE LABOR INC
Inventor： MARSHALL TOLA A
IPC: H04M11/06
CPC classification number: H04M11/06
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5.发明授权Circuit for locking service observing teletypewriter during supervisory signal reception 失效在监控信号接收期间锁定服务观察电传打字机的电路
公开(公告)号：US2424244A
公开(公告)日：1947-07-22
申请号：US62060745
申请日：1945-10-05
Applicant: BELL TELEPHONE LABOR INC
Inventor： MARSHALL TOLA A
IPC: H04L12/04
CPC classification number: H04L12/04
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Patent Agency Ranking6.发明授权Inverse neutral telegraph repeater concentration group cord and attendant's circuit 失效反中立电报中继器集中线和话务员电路
公开(公告)号：US2352272A
公开(公告)日：1944-06-27
申请号：US38268441
申请日：1941-03-11
Applicant: BELL TELEPHONE LABOR INC
Inventor： LARGE WAYNE V K , LUCEK CHARLES W , MARSHALL TOLA A
IPC: H04L12/04
CPC classification number: H04L12/04
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公开(公告)号：US2349586A
公开(公告)日：1944-05-23
申请号：US36254840
申请日：1940-10-24
Applicant: BELL TELEPHONE LABOR INC
Inventor： BONORDEN ALLEN R , KOOS PAUL V , KRECEK JOSEPH A , LARGE WAYNE V K , MARSHALL TOLA A
IPC: H04L12/18
CPC classification number: H04L12/18
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公开(公告)号：US2413688A
公开(公告)日：1947-01-07
申请号：US51048643
申请日：1943-11-16
Applicant: BELL TELEPHONE LABOR INC
Inventor： BONORDEN ALLEN R , KOOS PAUL V , KRECEK JOSEPH A , LARGE WAYNE V K , MARSHALL TOLA A
IPC: H04L12/04
CPC classification number: H04L12/04
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公开(公告)号：US2306701A
公开(公告)日：1942-12-29
申请号：US39893841
申请日：1941-06-20
Applicant: BELL TELEPHONE LABOR INC
Inventor： KINKEAD FULLERTON S , LARGE WAYNE V K , LUCEK CHARLES W , MARSHALL TOLA A
IPC: H04L12/04
CPC classification number: H04L12/04
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公开(公告)号：US2106357A
公开(公告)日：1938-01-25
申请号：US9335036
申请日：1936-07-30
Applicant: BELL TELEPHONE LABOR INC
Inventor： MARSHALL TOLA A
IPC: H04L12/04
CPC classification number: H04L12/04
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