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公开(公告)号:US2924795A
公开(公告)日:1960-02-09
申请号:US47899054
申请日:1954-12-31
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S , MORGAN JR SAMUEL P
CPC classification number: H01P3/18 , D06P1/65131 , H01B11/203 , H01P3/00
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公开(公告)号:US2341013A
公开(公告)日:1944-02-08
申请号:US40395741
申请日:1941-07-25
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
IPC: H04B3/08
CPC classification number: H04B3/08
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公开(公告)号:US2258128A
公开(公告)日:1941-10-07
申请号:US24679138
申请日:1938-12-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
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公开(公告)号:US2209955A
公开(公告)日:1940-08-06
申请号:US11439036
申请日:1936-12-05
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
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公开(公告)号:US2140492A
公开(公告)日:1938-12-20
申请号:US15829437
申请日:1937-08-10
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
IPC: H04B3/04
CPC classification number: H04B3/04
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公开(公告)号:US2102670A
公开(公告)日:1937-12-21
申请号:US41122329
申请日:1929-12-03
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
IPC: H03F1/36
CPC classification number: H03F1/36
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公开(公告)号:US2007172A
公开(公告)日:1935-07-09
申请号:US66331633
申请日:1933-03-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
IPC: H03F1/36
CPC classification number: H03F1/36
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公开(公告)号:US2324815A
公开(公告)日:1943-07-20
申请号:US43286042
申请日:1942-02-28
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
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公开(公告)号:US2258275A
公开(公告)日:1941-10-07
申请号:US35047840
申请日:1940-08-03
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
IPC: H04B3/04
CPC classification number: H04B3/04
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公开(公告)号:US2223506A
公开(公告)日:1940-12-03
申请号:US17374937
申请日:1937-11-10
Applicant: BELL TELEPHONE LABOR INC
Inventor: BLACK HAROLD S
IPC: H03F1/36
CPC classification number: H03F1/36
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