AU1056427A
(en )
1928-12-04
Improvements in or relating to multistage thermionic amplifiers receiving devices andthe like
AU1075127A
(en )
1926-04-24
Improvements in or relating' to multistage thermionic amplifiers, receiving devices andthe like
AU2408529A
(en )
1929-12-04
Improvements in or relating to thermionic limiting, amplifying andthe like devices
AU358426A
(en )
1926-12-14
Improvements in or relating to thermionic amplifiers
AU1962929A
(en )
1929-09-24
Improvements in or relating to thermionic amplifiers
CA276124A
(en )
1927-12-06
Amplification unit
AU1243428A
(en )
1928-10-09
Improvements in or relating to thermionic amplifiers, frequency changers andthe like
AU871927A
(en )
1928-08-21
Improvements in or relating to radio receiving sets ofthe supersonic kind
AU1004927A
(en )
1928-03-13
Improvements in or relating to radio receiving devices
AU514126A
(en )
1926-12-13
Improvements in or relating to thermionic amplifiers oscillators, detectors and like devices
CA275698A
(en )
1927-11-22
Radio amplification
CA272459A
(en )
1927-07-19
Amplifier
CA276011A
(en )
1927-12-06
Amplifier
AU488426A
(en )
1927-12-06
Improvements in or connected with amplifiers
CA296061A
(en )
1929-12-24
Amplification system
CA271243A
(en )
1927-05-31
Circuit amplifier
CA267332A
(en )
1927-01-04
Radio amplifier
AU688527A
(en )
1928-05-22
Improvements in thermionic valve amplifying systems
CA272461A
(en )
1927-07-19
Bobbin-bin and shelf
CA282707A
(en )
1928-08-21
Amplification system
AU1415728A
(en )
1929-07-09
Improvements in or relating to thermionic valves andthe like
AU717127A
(en )
1928-05-01
Improvements in or relating to multi-electrode thermionic valves
AU1370128A
(en )
1928-12-11
Improvements in or relating to thermionie amplifiers
CA281107A
(en )
1928-06-19
Power amplifying system
AU272626A
(en )
1928-11-13
Improvements in or relating to thermionic valve circuits