AU1834929A
(en )
1929-08-20
Improvements in or relating to thermionie valves
AU1919229A
(en )
1930-04-15
s Improvements in or relating to screw-down valves
AU2151029A
(en )
1930-02-04
Improvements in or relating to circuits comprisingthermionie valves
AU2287029A
(en )
1930-05-20
Improvements in or relating to thermionic valves
AU1421228A
(en )
1929-06-18
Improvements in or relating to thermionic valves
AU2331229A
(en )
1930-08-12
Improvements in or relating to thermionic valves
AU2243629A
(en )
1930-03-18
Improvements in or relating to drill-steels
AU2222229A
(en )
1930-05-20
Improvements in or relating to totalizators
AU1950229A
(en )
1929-10-01
Improvements in or relating to microphons
AU1570328A
(en )
1929-10-01
Improvements in or relating to sound-projectors
AU1772829A
(en )
1929-11-19
Improvements in valves
AU1776429A
(en )
1929-08-13
Improvements relating to valves
AU1747928A
(en )
1930-01-07
Improvements in or relating to gaskets
AU2069829A
(en )
1929-11-19
Improvements in or relating to vices
AU1859729A
(en )
1929-09-03
Improvements in or relating to doorknobs
AU2403929A
(en )
1930-12-23
Improvements in or relating to furniture
AU2404029A
(en )
1930-12-23
Improvements in or relating to furniture
AU1429328A
(en )
1929-07-02
Improvements in or relating to leers
AU1777129A
(en )
1930-01-14
Improvements in or relating to totalisators
AU1783029A
(en )
1929-08-20
Improvements in or relating to teabags
AU1459628A
(en )
1929-06-04
Improvements in or relating to ammunition
AU1203028A
(en )
1929-02-12
Improvements in valves as sluice-valves andthe like
AU1781829A
(en )
1930-04-29
Improvements in or relating to concrete
AU1989929A
(en )
1929-10-22
Improvements in or relating to pistons
AU2366729A
(en )
1930-07-08
Improvements in or relating to ultra-red-sensitive cells