GB513096A
(en )
1939-10-03
Improvements in or relating to members having screwed engagement
AU108445B2
(en )
1939-09-14
Improvements in or relating to the distillation of coal or shale
AU376138A
(en )
1939-09-14
Improvements in or relating to the distillation of coal or shale
AU107925B2
(en )
1939-07-20
Shale distillation
GB500855A
(en )
1939-02-16
Improvements in or relating to the drives of hollanders
AU105395B2
(en )
1938-10-20
Improvements in or relating to fastening devices andthe like
AU107784B2
(en )
1939-07-06
Improvements in or relating to the separation of minerals
AU108920B2
(en )
1939-11-09
Improvements in or relating to glass-to-metal seals
AU235138A
(en )
1939-07-20
Shale distillation
AU105248B2
(en )
1938-10-06
Improvements in or relating to hydro-extractors
AU105636B2
(en )
1938-11-10
Improvements in or relating to iconoscopes
AU109288B2
(en )
Improvements in or relating to portmanteaux
AU107613B2
(en )
1939-06-15
Improvements in or relating tothe breaking of coal or like minerals
AU109154B2
(en )
Improvements relating to aircraft undercarriages
AU107008B2
(en )
1939-04-06
Improvements relating to drenchers
AU108243B2
(en )
1939-08-24
Improvements in or relating to pistons andthe like
AU106947B2
(en )
1939-03-30
Improvements in or relating to rock crushers
AU110507B2
(en )
1940-05-16
Improvements in or relating to luminescent materials
AU107337B2
(en )
1939-05-18
Improvements in or relating to coke ovens
AU109067B2
(en )
1938-05-12
Improvements in or relating to tube wells
AU111570B2
(en )
1940-10-03
Improvements in or relating to apparatus for dry distillation of shale, coal or like material
AU111059B2
(en )
Improvements in or relating to refrigerators
AU111240B2
(en )
1940-08-22
Improvements in or relating to refrigerators
AU429637A
(en )
1938-10-20
Improvements in or relating to fastening devices andthe like
AU112738A
(en )
1939-07-06
Improvements in or relating to the separation of minerals