US3427010A
|
|
Heating apparatus and process
|
US3389957A
|
|
Process for selectively carbiding titanium, iron, and vanadium values
|
US3015553A
|
|
Slag reduction process
|
US3050798A
|
|
Process for continuous casting and vacuum degasification
|
US3091524A
|
|
Metallurgical process
|
US3079450A
|
|
Furnace refractory structures
|
US3032411A
|
|
Metallurgical process
|
US3043681A
|
|
Metallurgical processes
|
US2986458A
|
|
Production of iron from ferrous slag materials
|
US3037856A
|
|
Ferromanganese production
|
US3005687A
|
|
Process for the production of sulfuric acid
|