CH44856A
(en )
1909-09-16
Process for the deoxidation of liquid iron in electric arc furnaces
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
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
CH75790A
(en )
1917-09-17
Process for the direct production of fine iron and fine steel from titanium-containing iron ores
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
CH57094A
(en )
1912-12-16
Process for case hardening iron and steel objects
CH43208A
(en )
1909-05-17
Process for the production of titanium-free iron from titanium-containing iron ores
FR430808A
(en )
1911-10-25
Loader-unloader for metallurgical furnaces
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
CH79829A
(en )
1919-01-16
Process for the recovery of iron and steel waste
FR403131A
(en )
1909-10-26
Electrode support bracket for electric ovens
CH51987A
(en )
1911-10-16
Process for the reduction of iron ores essentially containing iron oxide
CH51149A
(en )
1911-08-01
Process for the production of ductile electrolyte iron
FR405347A
(en )
1909-12-27
Electric furnace for reducing iron ores and others