AU1110528A
(en )
1929-01-15
Improved process of annealing carbon-containing iron and steel
CA301388A
(en )
1930-06-24
Process of making iron and steel
CA304889A
(en )
1930-10-21
Process for the heat treatment of steel and iron
CA301389A
(en )
1930-06-24
Process of refining iron and steel
CA301944A
(en )
1930-07-08
Process of treating iron ores
IE11588L
(en )
1931-02-08
Treatment of steel
CA293953A
(en )
1929-10-15
Production of iron and steel
CA304254A
(en )
1930-09-23
Method of heat treating iron
CA252673A
(en )
1925-08-18
Production of iron and steel
CA299633A
(en )
1930-04-29
Process of protectively treating metal
CA306051A
(en )
1930-11-25
Method of strain hardening steel
CA305871A
(en )
1930-11-18
Process of reducing iron ores
CA299036A
(en )
1930-04-08
Process of treating iron pyrites
CA299037A
(en )
1930-04-08
Process of treating iron pyrites
CA295278A
(en )
1929-12-03
Process of reconditioning iron and steel drums
CA265596A
(en )
1926-11-09
Iron and steel alloy
IE11620L
(en )
1931-05-18
Treatment of steel and other ferrous alloys
CA307183A
(en )
1930-12-30
Process of treating ores
CA304497A
(en )
1930-10-07
Process of treating ores
CA290273A
(en )
1929-06-11
Iron and steel manufacture
CA289601A
(en )
1929-05-14
Iron and steel manufacture
CA302702A
(en )
1930-08-05
Hardness testing method and hardening of metals
CA234650A
(en )
1923-10-02
Protection of iron and steel
CA255417A
(en )
1925-11-17
Method of producing pig-iron or steel in blast furnaces
CA296755A
(en )
1930-01-21
Process of hardening copper