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公开(公告)号:US3142522A
公开(公告)日:1964-07-28
申请号:US24556762
申请日:1962-12-18
Applicant: BELL TELEPHONE LABOR INC
Inventor: HALL NORRIS R , THOMPSON JR RICHARD K
IPC: H04M17/02
CPC classification number: H04M17/026 , Y10T70/7768 , Y10T292/084 , Y10T292/0951 , Y10T292/102
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公开(公告)号:US3116013A
公开(公告)日:1963-12-31
申请号:US20606462
申请日:1962-06-28
Applicant: BELL TELEPHONE LABOR INC
Inventor: ENO WILBER S , HALL NORRIS R
CPC classification number: G07F9/04 , H04M1/276 , H04M17/026
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3.Direct station selection telephone set employing proximity type selector switches 失效
Title translation: 直接选择电话机使用接近型选择开关公开(公告)号:US3492440A
公开(公告)日:1970-01-27
申请号:US3492440D
申请日:1967-05-25
Applicant: BELL TELEPHONE LABOR INC
Inventor: CERBONE RALPH L , FLAVIN MICHAEL A , HALL NORRIS R , RIEKE JOHN W
IPC: H04M1/23 , H04M1/2745 , H04Q3/00 , H04M1/26 , H01H35/00
CPC classification number: H04Q3/00 , H03K2217/96077 , H04M1/23 , H04M1/274591
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公开(公告)号:US3428758A
公开(公告)日:1969-02-18
申请号:US3428758D
申请日:1965-09-14
Applicant: BELL TELEPHONE LABOR INC
Inventor: HALL NORRIS R , PRINCE TERRY B , RITCHEY JAMES F
CPC classification number: H04M1/27
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公开(公告)号:US3275755A
公开(公告)日:1966-09-27
申请号:US32161763
申请日:1963-11-05
Applicant: BELL TELEPHONE LABOR INC
Inventor: HALL NORRIS R , HAM JR JAMES H , HOSTETLER WILLARD E , HUTCHINSON KENNETH O , STROMMEN LAWRENCE A
IPC: H04M1/276
CPC classification number: H04M1/276
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