FR86768E
(en )
1966-04-08
Telephone switching system
FR1366484A
(en )
1964-07-10
Improvements to telephone switching systems
BE602817A
(en )
1961-08-16
Time division multiplex switching system, especially for telephony
FR87754E
(en )
1966-10-07
Switching system improvements
FR1382913A
(en )
1964-12-24
Improvements to telephone switching systems
BE619526A
(en )
1962-12-28
Assembly for time division multiplex telephone switching systems
BE619527A
(en )
1962-12-28
Improvements to time division multiplex telephone switching systems
FR1328030A
(en )
1963-05-24
Switching Device Improvements for Time Division Multiplex Remote Switching Systems
FR1289297A
(en )
1962-03-30
Improvements to time division multiplex switching systems, especially for telephony
FR1331653A
(en )
1963-07-05
Development of time division multiplex telephone switching systems
FR1413116A
(en )
1965-10-08
Improvements to centrally controlled switching networks
FR1479999A
(en )
1967-05-05
Improvements to time division multiplex telecommunications installations
FR1297952A
(en )
1962-07-06
Assembly for time division multiplex telephone switching systems
FR1468623A
(en )
1967-02-10
Time division multiplex telephone switching system
FR1385789A
(en )
1965-01-15
Improvements to time division multiplex telephone systems
FR1288664A
(en )
1962-03-24
Improvements to time division multiplex telecommunication systems
FR1431902A
(en )
1966-03-18
Improvements to telephone switching systems
FR1514198A
(en )
1968-02-23
Improvements to telephone switching systems
FR1331645A
(en )
1963-07-05
Assemblies for time division multiplex telephone switching systems
BE604765A
(en )
1961-10-02
Assembly for time division multiplex telephone switching systems.
CH422905A
(en )
1966-10-31
Time division multiplex telecommunication installation
FR1249221A
(en )
1960-12-30
Improvements to alternative switching telecommunication systems
FR1370241A
(en )
1964-08-21
Improvements to centrally controlled telephone switching systems
FR1298882A
(en )
1962-07-13
Advanced Telecommunications Automatic Switching Systems
FR1293724A
(en )
1962-05-18
Time division multiplex switching system, especially for telephony