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公开(公告)号:US2739187A
公开(公告)日:1956-03-20
申请号:US32991253
申请日:1953-01-06
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
IPC: H04M15/08
CPC classification number: H04M15/08
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公开(公告)号:US2678409A
公开(公告)日:1954-05-11
申请号:US18246850
申请日:1950-08-31
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
IPC: H04Q3/00
CPC classification number: H04Q3/0004
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公开(公告)号:US2616627A
公开(公告)日:1952-11-04
申请号:US5307948
申请日:1948-10-06
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
IPC: H03K23/82
CPC classification number: H03K23/82
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公开(公告)号:US2382994A
公开(公告)日:1945-08-21
申请号:US51397243
申请日:1943-12-11
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
IPC: G01C21/20
CPC classification number: G01C21/20
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公开(公告)号:US2333179A
公开(公告)日:1943-11-02
申请号:US44178642
申请日:1942-05-05
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
IPC: H04Q3/00
CPC classification number: H04Q3/0004
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公开(公告)号:US2327711A
公开(公告)日:1943-08-24
申请号:US41732341
申请日:1941-10-31
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
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公开(公告)号:US2299898A
公开(公告)日:1942-10-27
申请号:US41522641
申请日:1941-10-16
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
IPC: H04Q3/00
CPC classification number: H04Q3/0004
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公开(公告)号:US2284870A
公开(公告)日:1942-06-02
申请号:US35752040
申请日:1940-09-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T , LEWIS BENJAMIN F
IPC: H04M15/08
CPC classification number: H04M15/08
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公开(公告)号:US2246046A
公开(公告)日:1941-06-17
申请号:US26358339
申请日:1939-03-23
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
IPC: H03K17/288 , H04M15/00
CPC classification number: H04M15/00 , H03K17/288
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公开(公告)号:US2155230A
公开(公告)日:1939-04-18
申请号:US8813836
申请日:1936-06-30
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOLDEN WILLIAM H T
IPC: H02H9/06
CPC classification number: H02H9/06
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