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公开(公告)号:US2782313A
公开(公告)日:1957-02-19
申请号:US37106453
申请日:1953-07-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A
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公开(公告)号:US2508526A
公开(公告)日:1950-05-23
申请号:US78988147
申请日:1947-12-05
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A
IPC: H04M1/272
CPC classification number: H04M1/272
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公开(公告)号:US2211020A
公开(公告)日:1940-08-13
申请号:US25211739
申请日:1939-01-21
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A
IPC: H04Q3/42
CPC classification number: H04Q3/42
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公开(公告)号:US2111598A
公开(公告)日:1938-03-22
申请号:US367535
申请日:1935-01-26
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A
IPC: G01R23/00
CPC classification number: G01R23/00
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公开(公告)号:US1985046A
公开(公告)日:1934-12-18
申请号:US71376434
申请日:1934-03-02
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A , MEACHAM LARNED A
IPC: H04J1/06
CPC classification number: H04J1/06
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公开(公告)号:US1935325A
公开(公告)日:1933-11-14
申请号:US35203829
申请日:1929-04-02
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A
IPC: G01R23/02
CPC classification number: G01R23/02
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公开(公告)号:US1926877A
公开(公告)日:1933-09-12
申请号:US57065031
申请日:1931-10-23
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A
IPC: H03H7/20
CPC classification number: H03H7/20
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公开(公告)号:US1841489A
公开(公告)日:1932-01-19
申请号:US26443228
申请日:1928-03-24
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A
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公开(公告)号:US1733614A
公开(公告)日:1929-10-29
申请号:US21443327
申请日:1927-08-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: MARRISON WARREN A
IPC: H03B19/12
CPC classification number: H03B19/12
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