GB187271A
(en )
1922-10-10
Improvements in or relating to periscopes
AU151821A
(en )
1921-10-18
Improvements in or relating to fluid-current motors
AU640322A
(en )
1922-05-22
Improvements in or relating to wind motors
AU332021A
(en )
1922-05-30
Improvements in or relating to ball-cocks
AU70821A
(en )
1921-09-20
Improvemens in or relating to adding machines
AU134021A
(en )
1922-04-04
Improvements in or relating to hairbrushes
AU1769220A
(en )
1921-09-13
Improvements in or relating to aero-motors
AU373326A
(en )
1920-09-09
Improvements in or relating to are-rupturing devices
AU1700420A
(en )
1920-08-17
Improvements in or relating to electric locomotives
AU433921A
(en )
1922-12-12
Improvements in or relating to radio-telephonic apparatus
AU1544120A
(en )
1921-03-01
Improvements in or relating to acetylenegas generators
AU69821A
(en )
1921-09-13
Improvements in or relating to telephones
AU69921A
(en )
1921-09-13
Improvements in or relating to telephones
AU219521A
(en )
1922-04-26
Improvements in or relating to compressors
AU476221A
(en )
1922-01-09
Improvements in or relating to wind engines or motors
AU364221A
(en )
1922-10-03
Improvements in or relating to fastening-inserting machines
AU1209523A
(en )
1921-05-06
Improvements in or relating to lasts
AU1485120A
(en )
1920-08-03
Improvements in or relating to are generators
AU416221A
(en )
1922-11-08
Improvements in wind motors
AU1609524A
(en )
1921-02-02
Improvements in or relating to trunks
AU1810320A
(en )
1921-10-11
Improvements in or relating totin-openers
AU1263623A
(en )
1921-08-19
Improvements in heat-regenerators
AU700922A
(en )
1922-05-24
Improvements in bottlecaps
AU171221A
(en )
1923-02-20
Improvements in earburettors
AU1142123A
(en )
1923-03-12
Improvements in or relating to electric switch-fuses