AU1879129A
(en )
1930-03-18
Improvements in or relating to variable-speed gears
AU1598328A
(en )
1929-11-06
Improvements in or relating to friction draft gears
AU2243629A
(en )
1930-03-18
Improvements in or relating to drill-steels
AU2222229A
(en )
1930-05-20
Improvements in or relating to totalizators
AU1570328A
(en )
1929-10-01
Improvements in or relating to sound-projectors
AU1950229A
(en )
1929-10-01
Improvements in or relating to microphons
AU2863230A
(en )
1931-02-05
Improvements in or relating to variable friction gearing
AU1745328A
(en )
1929-08-20
Improvement~s in or relating to friction gearing
AU2369629A
(en )
1930-08-26
Improvements in fishing gears
CA295698A
(en )
1929-12-17
Variable speed gearing
AU1912229A
(en )
1929-10-08
Improvements in trawling gears
AU1952929A
(en )
1930-02-11
Improvements in trawling gears
AU1912329A
(en )
1929-10-08
Improvements in trawling gears
AU1551928A
(en )
1929-09-17
Improvements in or relating to speed reduction gearing
CA288001A
(en )
1929-03-19
Change speed gearing
AU1016127A
(en )
1928-04-17
Improvements in change speed gears
AU2137829A
(en )
1930-02-04
Improvements in continuously variable friction gearing
CA294781A
(en )
1929-11-12
Differential gearing
AU1745628A
(en )
1929-12-24
Improvements in and relating to variable speed gearing
AU1910929A
(en )
1930-03-04
Improvements in or relating to power transmission mechanism
CA294727A
(en )
1929-11-12
Composite gear
AU1747928A
(en )
1930-01-07
Improvements in or relating to gaskets
CA296074A
(en )
1929-12-31
Speed reduction gearing
AU1893529A
(en )
1930-04-01
Improvevents in or relating to wringers
AU1459628A
(en )
1929-06-04
Improvements in or relating to ammunition