CH376134A
(en )
1964-03-31
Process for reducing iron oxide ore
AT179095B
(en )
1954-07-10
Process for the processing of iron-containing sulfidic ores by chlorination
AT175854B
(en )
1953-08-25
Process for processing oxidic iron ores by flotation
CH247291A
(en )
1947-02-28
Process for the deformation of thermosetting material.
AT199210B
(en )
1958-08-25
Process for reducing iron ores
AT178867B
(en )
1954-06-25
Process for the enrichment of the metallic iron contained in reduced iron ore
AT172130B
(en )
1952-08-11
Process for processing iron-rich raw magnesite by flotation
AT174071B
(en )
1953-02-25
Process for producing steel from pig iron by refining
FR993967A
(en )
1951-11-09
Iron ore processing process
FR994377A
(en )
1951-11-15
Process for the treatment of ingots in magnetic alloys
FR938263A
(en )
1948-09-09
Advanced ore reduction process
FR992623A
(en )
1951-10-22
Process and float for recovering cargo from underwater wrecks
AT178093B
(en )
1954-04-10
Process for processing copper-containing pyrites
AT184594B
(en )
1956-02-10
Process for the reduction of ores
AT171405B
(en )
1952-05-26
Process for the extraction of metals from ores
CH266941A
(en )
1950-02-28
Process for producing conical external threads by rolling.
FR1060517A
(en )
1954-04-02
Improvements to mineral processing processes
FR1081015A
(en )
1954-12-15
Ore processing process
CH350167A
(en )
1960-11-15
Process for the preparation of metallic workpieces for cold forming
FR953040A
(en )
1949-11-29
Flotation ore processing facility
FR52683E
(en )
1945-05-16
Economical chemical treatment process for manganese ores
AT197977B
(en )
1958-05-27
Process for the production of lead-containing iron or steel ingots
CA420393A
(en )
1944-05-23
Ore flotation process
CA420478A
(en )
1944-05-30
Ore flotation process
CA424198A
(en )
1944-12-05
Ore flotation process