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公开(公告)号:US3073907A
公开(公告)日:1963-01-15
申请号:US1364960
申请日:1960-03-08
Applicant: BELL TELEPHONE LABOR INC
Inventor: ALTERMAN MICHAEL E , IRLAND EDWIN A
IPC: H04Q3/52
CPC classification number: H04Q3/521
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2.
公开(公告)号:US3409877A
公开(公告)日:1968-11-05
申请号:US41436564
申请日:1964-11-27
Applicant: BELL TELEPHONE LABOR INC
Inventor: ALTERMAN MICHAEL E , HUFFMAN DONALD W , FRANK S VIGLIANTE
IPC: H04Q11/04
CPC classification number: H04Q11/0407
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公开(公告)号:US3238311A
公开(公告)日:1966-03-01
申请号:US23856962
申请日:1962-11-19
Applicant: BELL TELEPHONE LABOR INC
Inventor: ALTERMAN MICHAEL E
IPC: H04Q1/26
CPC classification number: H04Q1/26
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