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1.Intercom system with separate signal, ringing, and talking links 失效
Title translation: 对讲系统具有单独的信号,振铃和通话链接公开(公告)号:US3406260A
公开(公告)日:1968-10-15
申请号:US47338165
申请日:1965-07-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: MCEOWEN JAMES R
IPC: H04M9/00
CPC classification number: H04M9/002
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公开(公告)号:US3530254A
公开(公告)日:1970-09-22
申请号:US3530254D
申请日:1968-08-01
Applicant: BELL TELEPHONE LABOR INC
Inventor: BERRYMAN ROBERT D , MCEOWEN JAMES R , SALTUS GEORGE E
IPC: H04M3/56
CPC classification number: H04M3/56
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公开(公告)号:US3385935A
公开(公告)日:1968-05-28
申请号:US40462164
申请日:1964-10-19
Applicant: BELL TELEPHONE LABOR INC
Inventor: ANDERSON HAROLD P , DAVIS DAVID T , HOHMANN JR LAWRENCE A , MAUL LLOYD L , MCEOWEN JAMES R , MEISE JR HENRY A , WELL GEORGE W
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公开(公告)号:US3453396A
公开(公告)日:1969-07-01
申请号:US3453396D
申请日:1966-01-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: LACEY JOSEPH C , MCEOWEN JAMES R
CPC classification number: H04M9/003
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公开(公告)号:US3395256A
公开(公告)日:1968-07-30
申请号:US47567665
申请日:1965-07-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: LIMIERO ALBERT D , MCEOWEN JAMES R , SPENCER JONATHAN A
IPC: H04M3/428
CPC classification number: H04M3/4283
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6.
公开(公告)号:US3342944A
公开(公告)日:1967-09-19
申请号:US36344964
申请日:1964-04-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: BARBATO ROBERT E , EARGLE MARVIN H , MCEOWEN JAMES R , TRENT DALE W , WELLS GEORGE W
IPC: H04M9/00
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