AT121523B
(en )
1931-02-25
Process for the extraction of metals, in particular iron, from their ores.
AT121535B
(en )
1931-02-25
Process for the extraction of metals from their oxides, especially low-carbon iron.
AT109149B
(en )
1928-03-26
Process for the extraction of iron in solid form from oxidic ores.
AT127792B
(en )
1932-04-11
Process for the preparation of amino alcohols.
AT126976B
(en )
1932-02-25
Process for extracting volatile metals from their ores.
AT126973B
(en )
1932-02-25
Method and device for the extraction of metals, in particular sponge iron, by reducing ores.
AT108106B
(en )
1927-11-25
Process for the direct extraction of low-carbon metals and alloys, in particular iron and chromium or their alloys.
AT169064B
(en )
1951-10-10
Process for the reduction of ores, in particular iron ores
AT148708B
(en )
1937-02-25
Process for the extraction of precious metals.
CH203195A
(en )
1939-02-28
Process for the heat treatment of metals of the iron group and their alloys.
ES93752A1
(en )
1926-08-01
Improvements in methods of producing metals from iron ores and the like.
AT116573B
(en )
1930-02-25
Process for the production of radioactive objects from metals or alloys.
CH160222A
(en )
1933-02-28
Process for the production of castings from alloys.
AT106698B
(en )
1927-06-25
Process for the extraction of practically iron-free tin from iron-containing tin ores, alloys, slags and waste.
AT148704B
(en )
1937-02-25
Process for the deformation of iron-carbon alloys such as pig iron, cast iron or malleable cast iron.
AT126981B
(en )
1932-02-25
Process for the production of anti-friction alloys.
CH138522A
(en )
1930-02-28
Process for deoxidizing iron or steel.
CH229664A
(en )
1943-11-15
Process for the diffusion of silicon in workpieces made of iron, steel or their alloys.
CH142800A
(en )
1930-10-15
Metal for soldering and plating metal, and methods of making the same.
DK42890C
(en )
1930-09-01
Process for refining metals, in particular iron and steel.
CH131625A
(en )
1929-02-28
Process for the production of cast iron.
AT108256B
(en )
1927-12-10
Process for pickling iron and steel materials.
CH231881A
(en )
1944-04-30
Process for the production of aluminum sulfate from aluminum ores.
CH159454A
(en )
1933-01-15
Process for the production of a hard molding containing precious metals
CH138469A
(en )
1930-02-28
Method and tool for the production of metal strip connections.