AU200013B2
(en )
1919-12-23
Improvements in or relating to electric amplifier arrangements
AU110754A
(en )
1919-12-23
Improvements in or relating to electric amplifier arrangements
AU1745420A
(en )
1920-08-27
Improvements in or relating to microphones
AU1658720A
(en )
1920-07-12
Improvements in or relating to magnetic ring-separators
AU103589B2
(en )
1919-04-14
Improvements in or relating to electric cookers
AU230960B2
(en )
1919-10-23
Improvements in or relating to amino-triazol derivatives
AU1350219A
(en )
1920-01-23
Improvements in or relating to electric-motor control-systems
AU1674820A
(en )
1921-10-15
Improvements in or relating to electric welding
AU1343119A
(en )
1920-12-07
Improvements in and relating to piano-players
AU176437A
(en )
1919-04-14
Improvements in or relating to electric cookers
AU3729058A
(en )
1919-10-23
Improvements in or relating to amino-triazol derivatives
AU489953B2
(en )
1976-03-25
Improvements in class b power amplifier
AU1130319A
(en )
1920-03-02
Improvements in and relating to telemotors
AU1930220A
(en )
1921-12-31
Improvements in and relating to trouser-braces
AU1048519A
(en )
1920-04-27
Improvements in and relating to privies
AU1422920A
(en )
1920-05-08
Improvements in or relating to books
AU1700420A
(en )
1920-08-17
Improvements in or relating to electric locomotives
AU1155319A
(en )
1920-02-03
Improvements in or relating to furnaces
AU1155419A
(en )
1920-02-03
Improvements in or relating to furnaces
AU1083119A
(en )
1919-11-18
Improvements in or relating to corsets
AU35121A
(en )
1921-01-31
Improvements in or relating to electric transformer arrangements
AU288118B2
(en )
1919-09-02
Improvements in or relating to spinnerets
AU7349274A
(en )
1976-03-25
Improvements in class b power amplifier
AU1344319A
(en )
1920-07-06
Improvements In or relating to ejectors
AU1248219A
(en )
1920-03-01
Improvements in or relating to domestic heating--and cooking-apparatus