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公开(公告)号:US2223521A
公开(公告)日:1940-12-03
申请号:US17407437
申请日:1937-11-11
Applicant: BELL TELEPHONE LABOR INC
Inventor: KIRKPATRICK WILLIAM E
IPC: H01J43/02
CPC classification number: H01J43/025
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公开(公告)号:US2859376A
公开(公告)日:1958-11-04
申请号:US50953455
申请日:1955-05-19
Applicant: BELL TELEPHONE LABOR INC
Inventor: KIRKPATRICK WILLIAM E
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公开(公告)号:US2547397A
公开(公告)日:1951-04-03
申请号:US6782948
申请日:1948-12-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: KIRKPATRICK WILLIAM E
IPC: H04J3/04
CPC classification number: H04J3/045
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公开(公告)号:US2740837A
公开(公告)日:1956-04-03
申请号:US15296650
申请日:1950-03-30
Applicant: BELL TELEPHONE LABOR INC
Inventor: KIRKPATRICK WILLIAM E
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公开(公告)号:US2509065A
公开(公告)日:1950-05-23
申请号:US79307147
申请日:1947-12-22
Applicant: BELL TELEPHONE LABOR INC
Inventor: KIRKPATRICK WILLIAM E
IPC: H04N5/68
CPC classification number: H04N5/68
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公开(公告)号:US2929957A
公开(公告)日:1960-03-22
申请号:US63161056
申请日:1956-12-31
Applicant: BELL TELEPHONE LABOR INC
Inventor: KIRKPATRICK WILLIAM E , SEARS RAYMOND W
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公开(公告)号:US2892122A
公开(公告)日:1959-06-23
申请号:US59196356
申请日:1956-06-18
Applicant: BELL TELEPHONE LABOR INC
Inventor: KIRKPATRICK WILLIAM E
IPC: H03K29/00
CPC classification number: H03K29/00
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公开(公告)号:US2589704A
公开(公告)日:1952-03-18
申请号:US17741450
申请日:1950-08-03
Applicant: BELL TELEPHONE LABOR INC
Inventor: KIRKPATRICK WILLIAM E , SEARS RAYMOND W
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