GB508048A
(en )
1939-06-26
Improvements in or relating to aerial systems
AU104166B2
(en )
1938-06-16
Improvements in or relating to printing telegraph systems
AU178937A
(en )
1938-06-16
Improvements in or relating to printing telegraph systems
GB511603A
(en )
1939-08-22
Improvements in or relating to telegraph systems
AU106578B2
(en )
1939-02-16
Improvements in or relating to telephone systems
AU103696B2
(en )
Improvements in or relating to telephone systems
AU106687B2
(en )
1939-03-02
Improvements in or relating to electrical communication systems
AU104396B2
(en )
1938-07-14
Improvements in or relating to television systems
CA370161A
(en )
1937-11-23
Telegraph printer system
AU104602B2
(en )
1938-07-02
Improvements in or relating to antenna systems
AU105528B2
(en )
1938-10-03
Improvements in or relating to telephone or like systems
AU105704B2
(en )
Improvements in or relating to telephone or like systems
AU105527B2
(en )
1938-10-27
Improvements in or relating to telephone or like systems
AU105489B2
(en )
Improvements in or relating to telephone or like systems
AU476237A
(en )
1939-02-16
Improvements in or relating to telephone systems
AU500037A
(en )
1939-03-02
Improvements in or relating to electrical communication systems
AU1947434A
(en )
1935-12-05
Improvements in or relating to printing telegraph systems
AU104122B2
(en )
1938-06-16
Improvements in or relating to electric signalling systems
AU107180B2
(en )
1939-04-27
Improvements in or relating to telegraph systems
AU103827B2
(en )
1938-05-12
Improvements in or relating to carrier signalling systems
AU102870B2
(en )
1938-01-13
Improvements in or relating to type printing telegraph apparatus andthe like
AU104009B2
(en )
1938-06-02
Improvements in or relating to telephone communication systems
AU113428B2
(en )
1941-07-17
Improvements in or relating to printing telegraph exchange systems
AU104541B2
(en )
1938-07-02
Improvements in or relating to shaving devices
AU270937A
(en )
1938-07-14
Improvements in or relating to television systems