AU110623B2
(en )
Improvements in or relating to band -pass electrical wave filters
AU106806B2
(en )
1939-03-16
Improvements in or relating to electrical wave filters
AU109837B2
(en )
1940-02-29
Improvements in or relating to electrical filters
AU110467B2
(en )
Improvements in or relating to electrical filters
AU111413B2
(en )
1940-09-12
Improvements in or relating to electrical filters
AU110802B2
(en )
Improvements in or relating to electric filters
AU517137A
(en )
1939-03-16
Improvements in or relating to electrical wave filters
AU107118B2
(en )
1939-04-20
Improvements in or relating to electrical bandpass filters
AU69739A
(en )
1940-02-29
Improvements in or relating to electrical filters
AU402739A
(en )
1940-09-12
Improvements in or relating to electrical filters
AU106628B2
(en )
1939-02-23
Improvements in or relating to electric filters
AU111891B2
(en )
1939-05-12
Improvements in and relating to electric filters
AU106634B2
(en )
1939-03-02
Improvements in or relating to electrical filter arrangements
AU136338A
(en )
1939-04-20
Improvements in or relating to electrical bandpass filters
AU57938A
(en )
1939-02-23
Improvements in or relating to electric filters
AU198539A
(en )
1939-05-12
Improvements in and relating to electric filters
AU59438A
(en )
1939-03-02
Improvements in or relating to electrical filter arrangements
AU107640B2
(en )
1939-06-22
Improvements in or relating to filters
AU107203B2
(en )
1939-04-27
Electric wave bandpass filters
AU108935B2
(en )
1938-04-24
Improvements in electric bandpass filters
AU110916B2
(en )
1940-07-11
Improvements in or relating to electric condensers
AU110204B2
(en )
1940-04-04
Improvements in or relating to electric Condensers
AU110951B2
(en )
Improvements in or relating to electric condensers
AU111057B2
(en )
Wave filter
AU111161B2
(en )
1940-08-15
Wave filter