AU2583030A
(en )
1930-10-14
Improvements in or relating to shadowless electric lighting apparatus
AU106480B2
(en )
1930-02-09
Improvements in or relating to electric discharge lamps
AU2597630A
(en )
1930-10-21
Improvements in or relating to electric incandescent lamps
AU2946030A
(en )
1931-04-02
Improvements in or relating to incandescent electric lamps
AU118537A
(en )
1930-02-09
Improvements in or relating to electric discharge lamps
AU211131A
(en )
1931-10-22
Improvements in or relating to electric lamps
CA298670A
(en )
1930-03-25
Hand electric lamp
CA301061A
(en )
1930-06-17
Electric lighting device
CA297808A
(en )
1930-02-25
Electric flashlight
AU2946030B
(en )
1931-04-02
Improvements in or relating to incandescent electric lamps
AU2754430A
(en )
1931-01-22
Improvements in or relating to lighting installations
AU2714630A
(en )
1931-01-15
Improvements in or relating to lighting installations
AU3035330A
(en )
1931-02-27
Improvements in or relating to electric cablesystems or installations
CA304594A
(en )
1930-10-07
Lighting unit
CA304208A
(en )
1930-09-23
Lighting unit
CA304207A
(en )
1930-09-23
Lighting unit
AU2153529A
(en )
1930-07-08
Improvements in or relating to electric glowlamps
AU2596830A
(en )
1930-09-16
Improvements in or relating to electric cablesystems
AU2085729A
(en )
1929-11-06
Improvements in or relating to electric lamps
CA304604A
(en )
1930-10-07
Electric candle
AU2951930A
(en )
1931-03-12
Improvements in or relating to electric upsetting apparatus
AU2951830A
(en )
1931-04-02
Improvements in or relating to electric upsetting apparatus
AU1285228A
(en )
1929-04-09
Improvements in or relating to electric incandescent lamps
CA301745A
(en )
1930-07-01
Electric light fixture
AU338731A
(en )
1931-12-10
Improvements in or relating togas-filled electric lamps