CH273746A
(en )
1951-02-28
Process for the production of castings from steel and steel alloys.
AT177630B
(en )
1954-02-25
Process for refining iron and steel by chemical surface treatment and painting
AT185831B
(en )
1956-06-11
Process for pre-freshening pig iron or steel iron in the ladle
LU30479A1
(en )
1951-02-28
PROCESS FOR IMPROVING THE DRAWING OF IRON AND STEEL WIRE AND PROFILES
AT167429B
(en )
1951-01-10
Process for the preparation of pentaenes
AT172622B
(en )
1952-09-25
Process for extracting steel directly from iron ore or scrap or both together
AT177629B
(en )
1954-02-25
Process for the phosphating of metals
CH273748A
(en )
1951-02-28
Process for the electrolytic refining of iron.
AT181606B
(en )
1954-04-12
Process for the smelting of ores, in particular iron ores
AT174071B
(en )
1953-02-25
Process for producing steel from pig iron by refining
AT174627B
(en )
1953-04-25
Process for the intermittent autogenous hardening of steel objects and equipment for carrying out the process
AT176580B
(en )
1953-11-10
Process to prevent decarburization during the heat treatment of steel in molten salt baths
AT169555B
(en )
1951-11-26
Process for the simultaneous smelting of iron ores with different iron contents
AT168589B
(en )
1951-06-25
Process for refining steel with pure oxygen
AT181863B
(en )
1955-05-10
Process for smelting ores, especially iron ores
AT181605B
(en )
1955-04-12
Process for smelting ores, especially iron ores
AT183863B
(en )
1955-11-25
Process for the finishing of skins
AT168781B
(en )
1951-08-10
Process for the production of iron and steel
AT169830B
(en )
1951-12-27
Process for the phosphating of metals
CH269570A
(en )
1950-07-15
Process for the decarburization of iron and iron alloys.
AT173804B
(en )
1953-01-26
Process for the surface treatment of workpieces, in particular castings
AT181153B
(en )
1955-02-25
Process for the refinement and tempering of the surfaces of metals, which can occur in several valency levels, including iron and steel
AT183852B
(en )
1955-11-25
Process for the catalytic treatment of substances containing carbon
AT188178B
(en )
1957-01-10
Process for the surface treatment of metals, in particular iron and steel
AT169789B
(en )
1951-12-27
Process for stress-free and distortion-free surface hardening of steel plates