CH69366A
(en )
1915-06-16
Process for smelting metals and furnace for practicing this process
CH44856A
(en )
1909-09-16
Process for the deoxidation of liquid iron in electric arc furnaces
CH59939A
(en )
1913-06-16
Process and high pressure furnace for direct iron and steel production
CH79829A
(en )
1919-01-16
Process for the recovery of iron and steel waste
AT78480B
(en )
1919-09-25
Process and pan for deoxidizing iron and steel using calcium carbide.
FR532609A
(en )
1922-02-08
Process for removing carbon from iron or other metals and metal alloys
CH74657A
(en )
1917-03-16
Process for attaching firmly adhering, closed metal jackets to round bodies of iron or steel
CH75169A
(en )
1917-06-16
Process for the treatment of molten material, alloys and the like and a flame furnace for its practice
FR511072A
(en )
1920-12-16
Metal ore concentration process
FR22597E
(en )
1921-07-23
Furnace for the direct manufacture of steel from iron ore
CH60587A
(en )
1913-08-01
Process for cementing and hardening iron and steel
FR456530A
(en )
1913-08-28
Improvements to furnaces used for roasting, smelting or other treatment of ores
FR505082A
(en )
1920-07-22
Electric blast furnace and special operation relating thereto, for the economic reduction of iron ores or other minerals
CH75790A
(en )
1917-09-17
Process for the direct production of fine iron and fine steel from titanium-containing iron ores
AT52348B
(en )
1912-02-26
Method and device for deslagging of mild iron and mild steel in a hearth furnace.
CH61243A
(en )
1913-09-16
Insert box for cementing and annealing iron and steel
CH43957A
(en )
1909-07-01
Process for reducing the carbon content of iron
FR485187A
(en )
1917-12-19
Improvements to furnaces for roasting ores
AT23795B
(en )
1906-04-10
Process for the refinement of iron ores u. like
FR451164A
(en )
1913-04-12
Carbonated iron ore roasting process
GB191205098A
(en )
1913-02-27
Improved Process of Making Steel.
CH67012A
(en )
1914-11-02
Process for decarburizing metals
FR468418A
(en )
1914-07-06
Process for the reduction of metallic ores, by fractional and successive melting, in shaft furnaces
GB157705A
(en )
1922-04-10
Improved process of manufacturing refined iron or steel directly from oxidized titanic iron
GB191501213A
(en )
1915-12-09
Improvements in or relating to the Manufacture of Steel.