CH45348A
(en )
1909-11-01
Process for the reduction of oxidic iron ores to iron
CA114247A
(en )
1908-09-29
Process of manufacturing steel from chromiferous pig iron
CH43208A
(en )
1909-05-17
Process for the production of titanium-free iron from titanium-containing iron ores
CH45349A
(en )
1909-11-01
Process for the direct production of steel from oxidic iron ores
CH53295A
(en )
1912-02-01
Process for the direct production of iron from oxidic iron ores
CH43957A
(en )
1909-07-01
Process for reducing the carbon content of iron
CH75790A
(en )
1917-09-17
Process for the direct production of fine iron and fine steel from titanium-containing iron ores
AT23795B
(en )
1906-04-10
Process for the refinement of iron ores u. like
CH44856A
(en )
1909-09-16
Process for the deoxidation of liquid iron in electric arc furnaces
FR386059A
(en )
1908-06-03
Process for the metallurgical treatment or smelting of ores or other similar materials
CH48733A
(en )
1910-11-16
Process for the production of low-sulfur iron
CH53294A
(en )
1912-02-01
Process and furnace system for the continuous production of forgeable iron from ore
AU1327808A
(en )
1909-07-20
An improved process forthe production of iron or steel direct from iron ore
AT23198B
(en )
1906-02-26
Process for the production of raw or forgeable iron directly from ores.
CH41606A
(en )
1908-11-02
Process for tinning cast iron
AT46581B
(en )
1911-02-25
Method and device for the production of steel or iron.
CH59939A
(en )
1913-06-16
Process and high pressure furnace for direct iron and steel production
AU433305A
(en )
1906-03-27
Improvement inthe process of extracting iron from its ores
AU433305B
(en )
1906-03-27
Improvement in the process of extracting iron from its ores
CH51987A
(en )
1911-10-16
Process for the reduction of iron ores essentially containing iron oxide
CA112357A
(en )
1908-06-09
Process of chloridizing ores
CH55751A
(en )
1912-09-02
Process for the production of pure iron oxide
CH41454A
(en )
1908-10-16
Process for deoxidizing and carbonizing liquid iron
FR386634A
(en )
1908-06-18
Process for treating poor sulphide ores
FR399901A
(en )
1909-07-10
Process for the direct extraction of iron from ore