-
Patent Agency Ranking
公开(公告)号：US3549810A
公开(公告)日：1970-12-22
申请号：US3549810D
申请日：1968-04-22
Applicant: BELL TELEPHONE LABOR INC
Inventor： DRISCOLL JOHN J , HILL DONALD G , WADDELL RICHARD E
CPC classification number: H04M11/045
-
公开(公告)号：US3480730A
公开(公告)日：1969-11-25
申请号：US3480730D
申请日：1966-06-01
Applicant: BELL TELEPHONE LABOR INC
Inventor： RITCHEY JAMES F , TATE LOUIS D , WADDELL RICHARD E
IPC: H04M11/04
CPC classification number: H04M11/045
-
3.发明授权Automatic reporting telephone with message transmission responsive to identification request signal responses 失效具有信息传输功能的自动报告电话响应标识请求信号响应
公开(公告)号：US3427403A
公开(公告)日：1969-02-11
申请号：US3427403D
申请日：1964-12-22
Applicant: BELL TELEPHONE LABOR INC
Inventor： STOKES REMBERT R , WADDELL RICHARD E
CPC classification number: H04M1/27 , H04M1/272 , H04M11/045
-
公开(公告)号：US3509287A
公开(公告)日：1970-04-28
申请号：US3509287D
申请日：1966-04-01
Applicant: BELL TELEPHONE LABOR INC
Inventor： FIELD NATHANIEL L , WADDELL RICHARD E
CPC classification number: H04M1/272
-
5.发明授权
公开(公告)号：US3427401A
公开(公告)日：1969-02-11
申请号：US3427401D
申请日：1964-12-22
Applicant: BELL TELEPHONE LABOR INC
Inventor： WADDELL RICHARD E
CPC classification number: H04M11/045 , H04M1/272
-
-
-
-
Search Results
5
records
(took 0.013 seconds)
