AU164824B2
(en )
1954-02-05
Improvements relating to automatic telephone systems
AU160560B2
(en )
1954-02-18
Improvements relating to automatic telephone systems
AU2361353A
(en )
1954-02-05
Improvements relating to automatic telephone systems
AU2387553A
(en )
1954-02-18
Improvements relating to automatic telephone systems
AU166306B2
(en )
1954-01-28
Improvements relating to automatic systems
CA495231A
(en )
1953-08-11
Automatic telephone system
AU165490B2
(en )
1953-12-17
Improvements in or relating to automatic telephone systems
CA493919A
(en )
1953-06-23
Automatic telephone systems
CA490689A
(en )
1953-02-17
Automatic telephone systems
CA494877A
(en )
1953-07-28
Automatic telephone systems
CA496610A
(en )
1953-10-06
Automatic telephone systems
CA497640A
(en )
1953-11-10
Automatic telephone systems
AU2320353A
(en )
1954-01-28
Improvements relating to automatic systems
AU2214553A
(en )
1953-12-17
Improvements in or relating to automatic telephone systems
AU201965B2
(en )
1955-03-31
Improvements relating to automatic telephone systems
AU157304B2
(en )
1953-04-30
Improvements in or relating to circuit-arrangements for use in automatic telephone systems
CA493486A
(en )
1953-06-09
Telephone systems
CA497641A
(en )
1953-11-10
Telephone systems
CA498859A
(en )
1953-12-29
Telephone systems
CA497078A
(en )
1953-10-20
Telephone systems
CA491104A
(en )
1953-03-10
Telephone systems
CA493123A
(en )
1953-05-26
Telephone systems
CA493483A
(en )
1953-06-09
Telephone systems
CA493485A
(en )
1953-06-09
Telephone systems
CA498037A
(en )
1953-12-01
Telephone systems