CH277997A
(en )
1951-09-30
Process for the electrodeposition of gold or gold alloys.
CH295646A
(en )
1954-01-15
Process for the decomposition of mixtures of substances by countercurrent extraction.
CH313570A
(en )
1956-04-30
Process for the electrolytic polishing of objects made of gold and gold alloys
AT179095B
(en )
1954-07-10
Process for the processing of iron-containing sulfidic ores by chlorination
AT171405B
(en )
1952-05-26
Process for the extraction of metals from ores
CH309264A
(en )
1955-08-31
Process for the production of objects from refractory metals by a cutting process and object produced according to this process.
AT174368B
(en )
1953-03-25
Process for the extraction of iron oxide from iron ores
CH318445A
(en )
1957-01-15
Process for the recovery of dimethylnitrosamine
AT175706B
(en )
1953-08-10
Process for the extraction of gallium from raw aluminum containing gallium
AT177562B
(en )
1954-02-10
Process for the extraction of alkali metals from their amalgams
AT176023B
(en )
1953-09-10
Process for the extraction of copper brine from copper-containing sulfur ores
AT175239B
(en )
1953-06-25
Process for the extraction of earth metal salts from silica-containing earth metal raw materials
AT174894B
(en )
1953-05-11
Process for the extraction of ferric chloride from iron ores
AT169316B
(en )
1951-11-10
Process for the extraction of low-carbon metals or alloys from slag resulting from metallothermal reactions
AT184594B
(en )
1956-02-10
Process for the reduction of ores
AT169315B
(en )
1951-11-10
Process for the aluminothermic extraction of metals
AT169830B
(en )
1951-12-27
Process for the phosphating of metals
AT194228B
(en )
1957-12-27
Process for the production of workpieces from metal powder
AT176204B
(en )
1953-09-25
Process for the extraction of components from natural waters
AT199210B
(en )
1958-08-25
Process for reducing iron ores
CH378866A
(en )
1964-06-30
Process for the extraction of lithium sulfate from lithium ores
AT178517B
(en )
1954-05-25
Process for increasing the mechanical wear resistance of machine parts made from powder metal
AT178093B
(en )
1954-04-10
Process for processing copper-containing pyrites
AT172118B
(en )
1952-08-11
Process for cooling mines
AT170266B
(en )
1952-02-11
Process for the pure representation of metals by barrier electrolysis