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公开(公告)号:US3016514A
公开(公告)日:1962-01-09
申请号:US52177844
申请日:1944-02-10
Applicant: BELL TELEPHONE LABOR INC
Inventor: ILGENFRITZ LESTER M , MOORE HILBERT R , ROBERTSON DONALD D
IPC: F41G7/00
CPC classification number: F41G7/00 , F42B19/01 , Y10S367/90
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公开(公告)号:US3237580A
公开(公告)日:1966-03-01
申请号:US49179643
申请日:1943-06-22
Applicant: BELL TELEPHONE LABOR INC
Inventor: ILGENFRITZ LESTER M , MOORE HILBERT R
CPC classification number: F41G7/228
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公开(公告)号:US3118062A
公开(公告)日:1964-01-14
申请号:US4393848
申请日:1948-08-12
Applicant: BELL TELEPHONE LABOR INC
Inventor: ILGENFRITZ LESTER M , KETCHLEDGE RAYMOND W , MOORE HILBERT R
CPC classification number: F41G7/2206 , F41G7/2253 , F41G7/2293 , G01S3/786
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公开(公告)号:US2843668A
公开(公告)日:1958-07-15
申请号:US60648556
申请日:1956-08-27
Applicant: BELL TELEPHONE LABOR INC
Inventor: ILGENFRITZ LESTER M
IPC: H04B17/40
CPC classification number: H04B17/405
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5.
公开(公告)号:US3011853A
公开(公告)日:1961-12-05
申请号:US77746747
申请日:1947-10-02
Applicant: BELL TELEPHONE LABOR INC
Inventor: ILGENFRITZ LESTER M
IPC: G01J5/00
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公开(公告)号:US2663190A
公开(公告)日:1953-12-22
申请号:US19600650
申请日:1950-11-16
Applicant: BELL TELEPHONE LABOR INC
Inventor: ILGENFRITZ LESTER M
IPC: H04B3/46
CPC classification number: H04B3/46
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