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1.
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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公开(公告)号:US3156883A
公开(公告)日:1964-11-10
申请号:US15390861
申请日:1961-11-21
Applicant: BELL TELEPHONE LABOR INC
Inventor: WELLS GEORGE W
IPC: H03K17/725 , H03M1/00 , H04M1/50
CPC classification number: H03K17/725 , H03M1/00 , H03M1/22 , H04M1/50
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公开(公告)号:US3244815A
公开(公告)日:1966-04-05
申请号:US26667263
申请日:1963-03-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: ANDERSON HAROLD P , DONN BAKER , FIELD JAMES M , HOHMANN JR LAWRENCE A , MAUL LLOYD L , WELLS GEORGE W
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4.Communication system line circuit particularly for key telephone systems 失效
Title translation: 通信系统线路电路特别适用于主要电话系统公开(公告)号:US3420963A
公开(公告)日:1969-01-07
申请号:US3420963D
申请日:1965-07-30
Applicant: BELL TELEPHONE LABOR INC
Inventor: ABBOTT HENRY H , HOHMANN LAWRENCE A JR , WELLS GEORGE W
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公开(公告)号:US3155920A
公开(公告)日:1964-11-03
申请号:US12735061
申请日:1961-07-27
Applicant: BELL TELEPHONE LABOR INC
Inventor: WELLS GEORGE W
IPC: H03K3/30
CPC classification number: H03K3/30
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公开(公告)号:US3363062A
公开(公告)日:1968-01-09
申请号:US40207364
申请日:1964-10-07
Applicant: BELL TELEPHONE LABOR INC
Inventor: HOHMANN JR LAWRENCE A , MAUL LLOYD L , WELLS GEORGE W
IPC: H04Q3/00
CPC classification number: H04Q3/0012
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公开(公告)号:US3234336A
公开(公告)日:1966-02-08
申请号:US18899562
申请日:1962-04-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: WELLS GEORGE W
IPC: H04M1/276
CPC classification number: H04M1/276
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公开(公告)号:US3289080A
公开(公告)日:1966-11-29
申请号:US33920664
申请日:1964-01-21
Applicant: BELL TELEPHONE LABOR INC
Inventor: WELLS GEORGE W
IPC: G01R19/30
CPC classification number: G01R19/30
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9.
公开(公告)号:US3168657A
公开(公告)日:1965-02-02
申请号:US22316062
申请日:1962-09-12
Applicant: BELL TELEPHONE LABOR INC
Inventor: WELLS GEORGE W
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