AU472719B2
(en )
1976-06-03
Automatic telecommunication switching system
CA978628A
(en )
1975-11-25
Electronic communication switching system
CA961143A
(en )
1975-01-14
Electrical signalling system
AU437704B2
(en )
1971-09-23
Electrical signalling arrangements inan automatic telephone or like switching system
AU1276070A
(en )
1971-09-23
Electrical signalling arrangements inan automatic telephone or like switching system
CA869173A
(en )
1971-04-20
Telephone switching system
AU460504B2
(en )
1972-09-07
Automatic telecommunication switching system
CA838250A
(en )
1970-03-31
Automatic telecommunication switching systems
CA833684A
(en )
1970-02-03
Automatic telecommunication switching systems
CA844063A
(en )
1970-06-09
Telephone switching system
AU2619971A
(en )
1972-09-07
Automatic telecommunication switching system
CA834833A
(en )
1970-02-17
Telecommunication switching systems
CA834356A
(en )
1970-02-10
Electrical switching system
CA811777A
(en )
1969-04-29
Telephone switching system
AU468707B1
(en )
1972-05-25
An automatic switching network
CA987026A
(en )
1976-04-06
Electronic communication switching system
CA829407A
(en )
1969-12-09
Automatic telegraph switching system
AU424612B2
(en )
Automatic telephone switching systems
AU2511171A
(en )
1972-08-10
Circuit arrangement for telephone switching systems
CA831591A
(en )
1970-01-06
Telephone signaling arrangement
CA844065A
(en )
1970-06-09
Telephone signaling arrangement
AU419441B2
(en )
1970-03-19
Telephone switching system
CA834317A
(en )
1970-02-10
Multifrequency signaling receiver circuit
CA836763A
(en )
1970-03-10
Electrical telecommunication circuits
CA853810A
(en )
1970-10-13
Automatic switching circuit