AU107448B2
(en )
1939-06-01
Improvements in or relating toa degenerative back-coupled amplifying arrangement
AU203738A
(en )
1939-06-01
Improvements in or relating toa degenerative back-coupled amplifying arrangement
AU106354B2
(en )
1939-01-26
Improvements in or relating to thermionic amplifiers
AU106454B2
(en )
1939-02-02
Improvements in or relating to thermionic amplifiers
AU106633B2
(en )
1939-03-02
Improvements in or relating to thermionic amplifiers
AU102931B2
(en )
1938-01-20
Improvements in amplifiers
AU32138A
(en )
1939-02-02
Improvements in or relating to thermionic amplifiers
AU10038A
(en )
1939-01-26
Improvements in or relating to thermionic amplifiers
AU838A
(en )
1939-03-02
Improvements in or relating to thermionic amplifiers
AU109040B2
(en )
1939-11-23
Improvement in electronic amplifier
AU106741B2
(en )
1939-03-09
Improvements in high frequency amplifying systems
AU106760B2
(en )
1939-03-09
Improvement in broadband amplifier
AU105201B2
(en )
1938-09-29
Improvements in signal combining amplifiers
AU572438A
(en )
1939-11-23
Improvement in electronic amplifier
CA376376A
(en )
1938-09-13
Amplifier
CA376375A
(en )
1938-09-13
Amplifier
CA372904A
(en )
1938-04-05
Amplifier
CA375463A
(en )
1938-08-02
Amplifier
CA371909A
(en )
1938-02-15
Amplifier
AU108651B2
(en )
1939-10-12
Improvements in or relating to high frequency linear amplifiers
AU251938A
(en )
1939-03-09
Improvements in high frequency amplifying systems
AU110962B2
(en )
1940-07-11
Improvements in or relating to wave amplifying systems
AU104979B2
(en )
Improvements in or relating to acoustic devices. 2
AU108641B2
(en )
1939-10-05
Improvements in or relating to boxes
AU109288B2
(en )
Improvements in or relating to portmanteaux