AU1649120A
(en )
1920-11-22
Improvements in or relating to the treatment of materials containing coal
AU1368619A
(en )
1920-05-15
Improvements in or relating to retorts andthe like
AU1649220A
(en )
1920-08-27
Improvements in or relating to the production of coal briquettes
AU1351019A
(en )
1919-12-11
Improvements in or relating tothe concentration of ores
AU1065619A
(en )
1919-04-04
Improvements in and relating tothe treatment of coal
AU1155319A
(en )
1920-02-03
Improvements in or relating to furnaces
AU1155419A
(en )
1920-02-03
Improvements in or relating to furnaces
AU230960B2
(en )
1919-10-23
Improvements in or relating to amino-triazol derivatives
AU1205719A
(en )
1919-10-16
Improvements in or relating to colour-sensitised photographic materials
AU423115B2
(en )
1919-11-20
Improvements in or relating tothe processing of razorblades
AU2653230A
(en )
1919-08-13
Improvements in or relating to liquid oxygen explosive charges
AU1117719A
(en )
1919-06-19
Improvements in or relating to artificial hands
AU1129719A
(en )
1919-06-04
Improvements in or relating to artificial hands
AU3729058A
(en )
1919-10-23
Improvements in or relating to amino-triazol derivatives
AU996719A
(en )
1920-02-10
Improvements in or relating to presses andthe like
AU574922A
(en )
1922-02-23
Improvements in or relating tothe concentration of coal
AU1422920A
(en )
1920-05-08
Improvements in or relating to books
AU1350219A
(en )
1920-01-23
Improvements in or relating to electric-motor control-systems
AU1360419A
(en )
1920-12-10
Improvements in or relating to coathangers andthe like
GB139680A
(en )
1920-03-11
Improvements in or relating to hollow-ware
AU1895420A
(en )
1920-12-14
Improvements in or relating to walls of concrete andthe like
AU3785168A
(en )
1919-11-20
Improvements in or relating tothe processing of razorblades
AU921918A
(en )
1919-08-05
Improvements in or relating to sewing mnachines
AU1100319A
(en )
1921-01-11
Improvements in or relating to rotary engines andthe like
AU633427A
(en )
1928-03-20
Improved appliance to facilitate the handling am of freight