AU1788134A
(en )
1935-10-03
Improvements in or relating to thermionic valves
AU1798534A
(en )
1935-06-27
Improvements in or relating to thermionic valves
AU2019234A
(en )
1936-02-20
Improvements in or relating to thermionic valves
AU1710734A
(en )
1935-04-18
Improvements in or relating to thermionic valve arrangements
AU1627634A
(en )
1935-02-21
Improvements in or relating to thermionic valve apparatus
AU1888434A
(en )
1935-09-26
Improvements in or relating to thermionic valve caps
AU101476B2
(en )
1937-07-08
Improvements in or relating to thermionic valves
AU1565133A
(en )
1934-12-31
Improvements in or relating to thermionic valves
AU1112733A
(en )
1934-02-08
Improvements in or relating to thermionic valves
AU1441833A
(en )
1934-12-31
Improvements in or relating to thermionic valves
AU1293933A
(en )
1934-10-11
Improvements in or relating to thermionic valves
AU1413833A
(en )
1934-11-22
Improvements in or relating to thermionic valves
AU2021934A
(en )
1935-11-18
Improvements in or relating to flush valves
AU1874534A
(en )
1935-07-11
Improvements in or relating to thermionic amplifiers
AU1481633A
(en )
1934-11-01
Improvements in or relating to thermionic amplifiers
AU101478B2
(en )
1936-05-10
Improvements in or relating to thermionic valves andthe like
AU488336A
(en )
1937-07-08
Improvements in or relating to thermionic valves
AU103831A
(en )
1932-04-14
Improvements in or relating to thermionic valves
AU481831A
(en )
1932-02-18
Improvements in or relating to thermionic valves
AU601032A
(en )
1933-02-16
Improvements in or relating to thermionic valves
AU701032A
(en )
1933-04-27
Improvements in or relating to thermionic valves
CA340598A
(en )
1934-04-03
Valve
CA343152A
(en )
1934-07-17
Valve
CA346595A
(en )
1934-12-11
Valve
CA338399A
(en )
1934-01-02
Valve