CH43957A
(en )
1909-07-01
Process for reducing the carbon content of iron
CH41454A
(en )
1908-10-16
Process for deoxidizing and carbonizing liquid iron
AT23795B
(en )
1906-04-10
Process for the refinement of iron ores u. like
CH71258A
(en )
1915-12-16
Process to improve the operation of electrically operated melting furnaces for steel and iron
CH45348A
(en )
1909-11-01
Process for the reduction of oxidic iron ores to iron
CH41606A
(en )
1908-11-02
Process for tinning cast iron
AT181608B
(en )
1955-04-12
Process for refining metals
CH59939A
(en )
1913-06-16
Process and high pressure furnace for direct iron and steel production
US864972A
(en )
1907-09-03
Material for use in refining iron and process of preparing the same.
AT67999B
(en )
1915-02-25
Process for the manufacture of means for electric welding.
CH48733A
(en )
1910-11-16
Process for the production of low-sulfur iron
CH60349A
(en )
1913-07-16
Metallurgical furnace for the direct production of iron and steel from iron ores and process for its production
CH75790A
(en )
1917-09-17
Process for the direct production of fine iron and fine steel from titanium-containing iron ores
CH79829A
(en )
1919-01-16
Process for the recovery of iron and steel waste
CH45349A
(en )
1909-11-01
Process for the direct production of steel from oxidic iron ores
CH35673A
(en )
1906-09-30
Electric induction furnace system for the treatment of ores and metallurgical products
CH43208A
(en )
1909-05-17
Process for the production of titanium-free iron from titanium-containing iron ores
FR386059A
(en )
1908-06-03
Process for the metallurgical treatment or smelting of ores or other similar materials
CH55751A
(en )
1912-09-02
Process for the production of pure iron oxide
CH67012A
(en )
1914-11-02
Process for decarburizing metals
FR352789A
(en )
1905-08-21
electrodes for electric ovens
FR403131A
(en )
1909-10-26
Electrode support bracket for electric ovens
GB190806029A
(en )
1909-01-14
Improvements in and relating to the Refining of Steel in Electric Furnaces.
CH51987A
(en )
1911-10-16
Process for the reduction of iron ores essentially containing iron oxide
CA112810A
(en )
1908-07-07
Method of treating iron ores