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公开(公告)号:US2342886A
公开(公告)日:1944-02-29
申请号:US38043341
申请日:1941-02-25
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
IPC: H04L27/26
CPC classification number: H04L27/26
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公开(公告)号:US2797862A
公开(公告)日:1957-07-02
申请号:US25536251
申请日:1951-11-08
Applicant: BELL TELEPHONE LABOR INC
Inventor: ANDREWS ERNEST G , ORFEO CESAREO , MURPHY PAUL B
IPC: G06F15/08
CPC classification number: G06F15/08
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公开(公告)号:US2288251A
公开(公告)日:1942-06-30
申请号:US37256040
申请日:1940-12-31
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
IPC: H04Q3/00
CPC classification number: H04Q3/0016
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公开(公告)号:US1730981A
公开(公告)日:1929-10-08
申请号:US22738927
申请日:1927-10-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
IPC: H04Q3/00
CPC classification number: H04Q3/00
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公开(公告)号:US1862578A
公开(公告)日:1932-06-14
申请号:US31758428
申请日:1928-11-06
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
IPC: H04Q1/446
CPC classification number: H04Q1/4465
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公开(公告)号:US2269034A
公开(公告)日:1942-01-06
申请号:US35385140
申请日:1940-08-23
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
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公开(公告)号:US2238070A
公开(公告)日:1941-04-15
申请号:US33436440
申请日:1940-05-10
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
CPC classification number: H04H20/103
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公开(公告)号:US2034877A
公开(公告)日:1936-03-24
申请号:US74137334
申请日:1934-08-25
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
IPC: H04M3/12
CPC classification number: H04M3/12
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公开(公告)号:US1901403A
公开(公告)日:1933-03-14
申请号:US50051730
申请日:1930-12-06
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
IPC: H04M15/08
CPC classification number: H04M15/08
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公开(公告)号:US1828507A
公开(公告)日:1931-10-20
申请号:US19878627
申请日:1927-06-14
Applicant: BELL TELEPHONE LABOR INC
Inventor: MURPHY PAUL B
IPC: H01H51/32
CPC classification number: H01H51/32 , Y10T74/1555
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