AU370331A
(en )
1932-04-07
Method for moulding metals and apparatus for carrying out this method
CA312885A
(en )
1931-06-30
Method and apparatus for casting metals
CA307948A
(en )
1931-01-20
Method and apparatus for pyro-recording
CA309167A
(en )
1931-03-10
Process and apparatus for reducing ores
CA316290A
(en )
1931-10-20
Metal reclaiming apparatus
CA312118A
(en )
1931-06-09
Cooling method and apparatus
CA298146A
(en )
1930-03-11
Method and apparatus for handling metals
CA323107A
(en )
1932-06-07
Metallurgical process and apparatus
CA326999A
(en )
1932-10-18
Metallurgical process and apparatus
CA312447A
(en )
1931-06-23
Ore reduction process and apparatus
CA310483A
(en )
1931-04-14
Apparatus for straightening rails
CA308141A
(en )
1931-01-27
Method and apparatus for making wallboard
CA310049A
(en )
1931-04-07
Method and apparatus for detecting ores
AU476731A
(en )
1932-04-21
An improved method and apparatus for the extrusion of metal
CA313792A
(en )
1931-07-28
Grinding method and apparatus
AU348631A
(en )
1932-09-08
Process and apparatus for reclaiming oils
CA310189A
(en )
1931-04-07
Process and apparatus for moulding buttons
AU92331A
(en )
1931-07-16
Process of and apparatus for centrifugally moulding relatively hard metals
CA307863A
(en )
1931-01-20
Filtering method and apparatus
CA315075A
(en )
1931-09-08
Apparatus for making moulds
CA312894A
(en )
1931-06-30
Method and apparatus for electric welding
CA312461A
(en )
1931-06-23
Milking apparatus and process
CA314380A
(en )
1931-08-18
Apparatus for manufacturing castings
CA302369A
(en )
1930-07-22
Metallurgical process and apparatus
CA305922A
(en )
1930-11-18
Centrifuge method and apparatus