AU111891B2
(en )
1939-05-12
Improvements in and relating to electric filters
AU198539A
(en )
1939-05-12
Improvements in and relating to electric filters
AU110802B2
(en )
Improvements in or relating to electric 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
AU402739A
(en )
1940-09-12
Improvements in or relating to electrical filters
AU69739A
(en )
1940-02-29
Improvements in or relating to electrical filters
AU110297B2
(en )
1940-04-18
Improvements in and relating to electric ovens
AU111165B2
(en )
Improvements in or relating to electric lamp-holders and to adaptors therefor
AU110889B2
(en )
1940-07-04
Improvements in and relating to mousetraps
AU106628B2
(en )
1939-02-23
Improvements in or relating to electric filters
AU110064B2
(en )
1940-03-21
Improvements in and relating to electric heating elements
AU225639A
(en )
1940-04-18
Improvements in and relating to electric ovens
AU106634B2
(en )
1939-03-02
Improvements in or relating to electrical filter arrangements
AU111988B2
(en )
1940-12-05
Improvements in and relating to electric discharge devices
AU112115B2
(en )
Improvements in and relating to electric heating devices
AU565238A
(en )
1940-07-04
Improvements in and relating to mousetraps
AU109131B2
(en )
1939-11-30
Improvements in or relating to magnetic filters
AU57938A
(en )
1939-02-23
Improvements in or relating to electric filters
AU110265B2
(en )
1940-04-11
Improvements in and relating to loudspeakers
AU284839A
(en )
1940-03-21
Improvements in and relating to electric heating elements
AU110623B2
(en )
Improvements in or relating to band -pass electrical wave filters
AU111299B2
(en )
1940-08-29
Improvements in and relating to electric discharge apparatus
AU111681B2
(en )
1939-03-29
Improvements in and relating to absorption-refrigerating apparatus