AU1803320A
(en )
1920-12-21
Improvements in and relating to piano players
AU1473420A
(en )
1920-12-21
Improvements in and relating to piano-players
AU1473320A
(en )
1920-12-07
Improvements in and relating to piano-players
AU1733020A
(en )
1920-12-21
Improvements in and relating to piano-players
AU1733020B
(en )
1920-12-21
Improvements in and relating to piano-players
AU1753020A
(en )
1921-09-06
Improvements in and relating to bogie-autormobiles
AU2604825A
(en )
1920-10-26
Improvements in and relating to flushing arrangements
AU1469020A
(en )
1920-11-23
Improvements in and relating to carburetors
AU1530820A
(en )
1920-11-23
Improvements in and relating to carburetors
AU1921920A
(en )
1921-07-19
Improvements in and relating' to grand pianos
AU1476020A
(en )
1920-06-01
Improvements in and relating to translating sound variations
AU1921920B
(en )
1921-07-19
Improvements in and relating' to grand pianos
AU1697120A
(en )
1921-04-12
Improvements in and relating to portable stockfeeders
GB164277A
(en )
1921-06-09
Improvements in and relating to eye-glasses
AU1855220A
(en )
1921-08-30
Improvements in and relating to mechanism principally for toy and amusement purposes
AU1892320A
(en )
1921-05-24
Improvements in and relating to lawnmowers
GB174674A
(en )
1922-01-24
Improvements in and relating to kinematography
AU1530820B
(en )
1920-11-23
Improvements in and relating to carburetors
AU1769220A
(en )
1921-09-13
Improvements in or relating to aero-motors
GB163151A
(en )
1921-05-19
Improvements in or relating to gramophones
AU1728920A
(en )
1921-07-26
Improvements in and relating to motorcycles
AU1584220A
(en )
1920-10-19
Improvements in and relating to ladders
AU1430820A
(en )
1920-07-13
Improvements in and relating to crutches
GB175123A
(en )
1922-02-16
Improvements in or relating to gramophones and like machines
GB168088A
(en )
1921-08-26
Improvements in or relating to gramophones and like machines