AU225534B2
(en )
1958-11-13
r "Improvements in selectors for use in automatic telephone systems
AU3782158A
(en )
1958-11-13
r "Improvements in selectors for use in automatic telephone systems
AU227325B2
(en )
1958-08-21
Improvements in metering arrangements for automatic telephone systems
AU3542458A
(en )
1958-08-21
Improvements in metering arrangements for automatic telephone systems
AU226404B2
(en )
1959-04-23
Improvements in telephone systems
AU226577B2
(en )
1959-04-09
Improvements in telephone systems
AU226826B2
(en )
1959-04-23
Improvements in telephone systems
CA528862A
(en )
1956-08-07
Switching device for use in automatic telephone system or a similar system
AU234799B2
(en )
1959-05-21
Improvements in party-line arrangements for automatic telephone switching systems
CA571948A
(en )
1959-03-10
Line selecting means in automatic telephone systems
AU233869B2
(en )
1959-05-28
Improvements in automatic or semiautomatic telephone systems
AU250434B2
(en )
1960-11-03
Improvements in automatic telephone systems
AU228480B2
(en )
1958-11-27
Improvements in or relating to automatic telephone systems
AU226993B2
(en )
1958-11-27
Improvements in or relating to automatic telephone systems
CA562242A
(en )
1958-08-26
Automatic telephone system
AU202560B2
(en )
1955-10-13
Improvements in automatic telephone systems
AU265891B2
(en )
1963-05-02
Improvements in automatic telephone systems
AU4260858A
(en )
1959-04-23
Improvements in telephone systems
AU4260558A
(en )
1959-04-23
Improvements in telephone systems
AU4213658A
(en )
1959-04-09
Improvements in telephone systems
CA557106A
(en )
1958-05-06
Automatic telephone systems
CA567448A
(en )
1958-12-16
Automatic telephone systems
CA562754A
(en )
1958-09-02
Toll switching telephone system
AU218894B2
(en )
1958-05-15
Improvements in alternative routing arrangements for use in automatic telephone systems
AU4343358A
(en )
1959-05-21
Improvements in party-line arrangements for automatic telephone switching systems