CH312958A
(en )
1956-03-15
Process for removing anions from liquid media
AT179095B
(en )
1954-07-10
Process for the processing of iron-containing sulfidic ores by chlorination
AT176023B
(en )
1953-09-10
Process for the extraction of copper brine from copper-containing sulfur ores
CH310840A
(en )
1955-11-15
Process for the production of tinned copper wire.
CH330144A
(en )
1958-05-31
Process for the removal of impurities, in particular malodorous substances, from water
AT171405B
(en )
1952-05-26
Process for the extraction of metals from ores
CH318445A
(en )
1957-01-15
Process for the recovery of dimethylnitrosamine
AT198206B
(en )
1958-06-25
Process for removing urochrome from water
CH296008A
(en )
1954-01-31
Process for the electrolytic treatment of objects made of iron or iron alloys.
CH378866A
(en )
1964-06-30
Process for the extraction of lithium sulfate from lithium ores
AT176206B
(en )
1953-09-25
Process for the production of iron or copper oxide from iron or copper sulfate
AT177562B
(en )
1954-02-10
Process for the extraction of alkali metals from their amalgams
AT186012B
(en )
1956-06-25
Process for the production of magnetic heads consisting of one or more magnetic circuits
AT194228B
(en )
1957-12-27
Process for the production of workpieces from metal powder
AT175239B
(en )
1953-06-25
Process for the extraction of earth metal salts from silica-containing earth metal raw materials
AT186233B
(en )
1956-07-25
Process for the extraction of ferric chloride from iron ore or other material containing iron oxide
AT188918B
(en )
1957-03-25
Process for removing the adhering sulfuric acid or sulfates from copper cathodes from copper electrolysis
AT199210B
(en )
1958-08-25
Process for reducing iron ores
AT174894B
(en )
1953-05-11
Process for the extraction of ferric chloride from iron ores
CH302140A
(en )
1954-10-15
Process for separating a solid from a solution.
AT178093B
(en )
1954-04-10
Process for processing copper-containing pyrites
AT193609B
(en )
1957-11-25
Process for the extraction of metallic lead from ores, intermediate products or waste products which contain lead sulphide
AT198955B
(en )
1958-08-11
Process for the extraction of metallic lead from ores, intermediate products or waste products which contain lead sulphide
CH317123A
(en )
1956-11-15
Process for the production of metal-containing tetra-aza-porphines
AT187098B
(en )
1956-10-10
Process for recovering cryolite from the coal floor of the electrolytic furnace