AU112326B2
(en )
1939-07-22
Improvements in and relating to carrier frequency communication exchange systems
AU310539A
(en )
1939-07-22
Improvements in and relating to carrier frequency communication exchange systems
AU112363B2
(en )
1939-07-20
Improvements in and relating to carrier frequency communication systems
AU319739A
(en )
1939-07-20
Improvements in and relating to carrier frequency communication systems
AU110498B2
(en )
1940-05-16
Improvements in and relating to noise-limiting circuits for carrier wave communication systems
AU110497B2
(en )
1940-05-16
Improvements in and relating to noise-limiting circuits for carrier wave communication systems
AU323139A
(en )
1940-05-16
Improvements in and relating to noise-limiting circuits for carrier wave communication systems
AU323239A
(en )
1940-05-16
Improvements in and relating to noise-limiting circuits for carrier wave communication systems
AU109392B2
(en )
1940-01-11
Improvements in and relating to suppressed carrier signalling and receiving systems
AU105242B2
(en )
Improvements in and relating to modulated carrier wave signalling systems
AU562338A
(en )
1940-01-11
Improvements in and relating to suppressed carrier signalling and receiving systems
AU109451B2
(en )
1940-01-11
Improvements in or relating to carrier wave telephony systems
AU110955B2
(en )
1940-07-11
Improvements in or relating to pulse modulated carrier communication systems
AU110853B2
(en )
1940-07-04
Improvements in or relating to secret communication systems
AU566138A
(en )
1940-01-11
Improvements in or relating to carrier wave telephony systems
AU112605B2
(en )
1941-03-06
Improvements in or relating to telecommunication exchange systems
AU112606B2
(en )
1941-03-06
Improvements in or relating to telecommunication exchange systems
AU106541B2
(en )
1939-02-16
Improvements in or relating to telephone or like exchange systems
AU143639A
(en )
1940-07-11
Improvements in or relating to pulse modulated carrier communication systems
AU108569B2
(en )
Improvements in or relating to modulated carrier wave receivers
AU277639A
(en )
1940-07-04
Improvements in or relating to secret communication systems
AU109616B2
(en )
1938-01-26
Improvements in or relating to electrical communication systems
AU565339A
(en )
1941-03-06
Improvements in or relating to telecommunication exchange systems
AU517739A
(en )
1941-03-06
Improvements in or relating to telecommunication exchange systems
AU114830B2
(en )
1942-03-19
Improvements in or relating to modulated carrier wave communication systems