CA568838A
(fr )
1959-01-13
Agencements d'indicateur dans systemes telephoniques
AU231260B2
(en )
1959-08-13
Improvements in telephone systems
AU235231B2
(en )
1959-09-24
Improvements in telephone systems
AU4713259A
(en )
1959-09-24
Improvements in telephone systems
AU4583159A
(en )
1959-08-13
Improvements in telephone systems
AU226577B2
(en )
1959-04-09
Improvements in telephone systems
AU226826B2
(en )
1959-04-23
Improvements in telephone systems
AU226404B2
(en )
1959-04-23
Improvements in telephone systems
AU250434B2
(en )
1960-11-03
Improvements in automatic telephone systems
CA588334A
(fr )
1959-12-08
Systemes de telephone
CA581156A
(fr )
1959-08-11
Systeme de telephone
CA574965A
(fr )
1959-04-28
Systemes de telephone
CA587164A
(fr )
1959-11-17
Systemes de telephone
CA572855A
(fr )
1959-03-24
Systemes de telephone
AU265835B2
(en )
1963-05-02
Improvements in telephone systems
AU242640B2
(en )
1961-01-26
Improvements in telephone systems
AU4260558A
(en )
1959-04-23
Improvements in telephone systems
AU4213658A
(en )
1959-04-09
Improvements in telephone systems
AU4260858A
(en )
1959-04-23
Improvements in telephone systems
AU240400B2
(en )
1960-05-19
Improvements in or relating to telephone systems
AU249227B2
(en )
1960-11-17
Improvements in or relating to automatic telephone systems
AU5999560A
(en )
1960-11-03
Improvements in automatic telephone systems
AU216847B2
(en )
1957-11-07
Improvements in telephone systems
AU214701B2
(en )
1957-10-03
Improvements in telephone systems
AU219945B2
(en )
1957-12-05
Improvements in telephone systems