CH317133A
(en )
1956-11-15
Process for polymerizing acrylonitrile
AT187928B
(en )
1956-12-10
Process for making steel by refining in hearth furnaces
AT185831B
(en )
1956-06-11
Process for pre-freshening pig iron or steel iron in the ladle
LU31850A1
(en )
1953-12-02
PROCESS FOR FINISHING HARDENABLE STEEL
AT180280B
(en )
1954-11-25
Process for blowing pig iron
AT168589B
(en )
1951-06-25
Process for refining steel with pure oxygen
AT183428B
(en )
1955-10-10
Process for refining metals
AT183426B
(en )
1955-10-10
Process for smelting ores, in particular iron ores, in a low-shaft furnace
AT186269B
(en )
1956-07-25
Process for smelting ores, in particular iron ores, in a low-shaft furnace
AT174387B
(en )
1953-03-25
Process for blowing pig iron
AT186274B
(en )
1956-07-25
Process for deoxidizing iron and steel melts
AT192440B
(en )
1957-10-25
Process for hardening case-hardening steels
AT183517B
(en )
1955-10-25
Process for the production of steels containing lead
AT182111B
(en )
1955-05-25
Process for the rapid desulphurisation of steel melts
AT174880B
(en )
1953-05-11
Facility for pre-pledging in steel during pit construction
AT175585B
(en )
1953-07-25
Process for refining molten metal baths, in particular iron baths
AT175435B
(en )
1953-07-10
Process for making iron or steel parts corrosion-resistant
FR1075120A
(en )
1954-10-13
Process for roasting crushed sulfur ores
AT184201B
(en )
1955-12-27
Process for the desulfurization of iron in a shaft furnace
CH273748A
(en )
1951-02-28
Process for the electrolytic refining of iron.
AT199210B
(en )
1958-08-25
Process for reducing iron ores
AT182705B
(en )
1955-07-25
Process for operating shaft furnaces for oxygen-thermal processes
CH307239A
(en )
1955-05-31
Process for cold quenching and tempering of structural steel.
AT185832B
(en )
1956-06-11
Process for the construction of industrial furnaces
AT186763B
(en )
1956-09-10
Process for refining carbonaceous substances