GB513096A
(en )
1939-10-03
Improvements in or relating to members having screwed engagement
AU108233B2
(en )
1939-08-24
Improvements in or relating to alternating systems
AU557838A
(en )
1939-08-24
Improvements in or relating to alternating systems
AU107435B2
(en )
Improvements in or relating to electrical systems
AU105248B2
(en )
1938-10-06
Improvements in or relating to hydro-extractors
AU105636B2
(en )
1938-11-10
Improvements in or relating to iconoscopes
AU109288B2
(en )
Improvements in or relating to portmanteaux
AU112027B2
(en )
1940-12-12
Improvements in or relating to absorption-refrigerating systems
AU107180B2
(en )
1939-04-27
Improvements in or relating to telegraph systems
AU107516B2
(en )
1939-06-08
Improvements in or relating to electric signalling systems
AU108197B2
(en )
1939-08-17
Improvements in or relating to electric signalling systems
AU108755B2
(en )
1939-10-19
Improvements in or relating to electric signalling systems
AU105631B2
(en )
Improvements in or relating to couplings
AU105630B2
(en )
Improvements in or relating to couplings
AU109393B2
(en )
Improvements in or relating to aerial systems
AU107629B2
(en )
Improvements in or relating to rectifier arrangements
AU109449B2
(en )
1940-01-11
Improvements in or relating to carrier-wave systems
AU107250B2
(en )
1939-05-04
Improvements in or relating to telecinematograph transmitters
AU107639B2
(en )
1939-06-22
Improvements in or relating to antenna systems
AU85038A
(en )
1938-11-10
Improvements in or relating to iconoscopes
AU148038A
(en )
1938-10-06
Improvements in or relating to hydro-extractors
AU107965B2
(en )
1939-07-27
Improvements in or relating to electric water-heating systems
AU109960B2
(en )
1938-08-27
Improvements in or relating to trousers
AU109277B2
(en )
1939-12-14
Improvements in or relating to telephone systems
AU537539A
(en )
1940-12-12
Improvements in or relating to absorption-refrigerating systems