FR1382205A
(en )
1964-12-18
Telephone switching system
CH434381A
(en )
1967-04-30
Asymmetrical direct current push-button selection process for telecommunications, in particular telephone systems
BE597188A
(en )
1961-03-15
Telephone switching system.
NL147000B
(en )
1975-08-15
TELEPHONE SWITCHING SYSTEM WITH TIME DIVIDING.
NL139484B
(en )
1973-08-15
CARRIER BLOCK.
NL143784B
(en )
1974-10-15
COMMUNICATION SYSTEM WITH MULTIPLE-TIME DIVISION.
CH404733A
(en )
1965-12-31
Circuit arrangement for controlling switching processes in a switching system, in particular for telephone exchanges
NL146018B
(en )
1975-05-15
TIME MULTIPLEX TELEPHONE SYSTEM WITH LINE CONCENTRATORS.
CH389978A
(en )
1965-03-31
In particular, demountable pigsty
BE609823A
(en )
1962-02-15
Integrated telephone switching system.
NL142556B
(en )
1974-06-17
TELEPHONE SWITCHING SYSTEM WITH PBX CENTRALS.
CH399847A
(en )
1965-09-30
Liquid containers, in particular for vehicles
CH412998A
(en )
1966-05-15
Centrally controlled switching system, in particular for telephone purposes
AT241548B
(en )
1965-07-26
System for carrying out switching tasks, in particular for telephone purposes
CH411046A
(en )
1966-04-15
Centrally controlled switching system, in particular for telephone purposes
CH404735A
(en )
1965-12-31
Circuit arrangement for avoiding double connections in a switching system, in particular for telephone purposes
CH395775A
(en )
1965-07-15
Cutting disc, in particular for skinning devices
CH403873A
(en )
1965-12-15
Circuit arrangement for testing lines in telecommunication systems, in particular telephone systems
CH412997A
(en )
1966-05-15
Centrally controlled switching system, in particular for telephone purposes
CH414761A
(en )
1966-06-15
Circuit arrangement for a centrally controlled telephone, in particular telephone branch exchange
CH409004A
(en )
1966-03-15
Circuit arrangement, in particular for telephone systems, for converting input information
CH401168A
(en )
1965-10-31
Receiving device for tone-frequency touch-tone code characters in telecommunications, in particular telephone systems
CH392021A
(en )
1965-05-15
Carriers, in particular for building purposes
AT238525B
(en )
1965-02-10
Device for changing, in particular reducing, speeds
AT240567B
(en )
1965-06-10
Structures, in particular for ceilings