FR715936A
(en )
1931-12-11
Improvements in extraction processes for metals contained in minerals and other metalliferous materials
AU2274629A
(en )
1930-04-01
Improvements in or relating to process of recovering metals from their ores or from metalliferous materials
AU228731A
(en )
1931-12-17
Improvements in or relating to processes for recovering metal values from ores andother metalliferous materials
AU2157229A
(en )
1930-02-04
Improvements in or relating to the reduction of ores of metals capable of volatilisation
GB321213A
(en )
1929-11-04
Improvements in or relating to the recovery of copper from ores and the like
AU3075530B
(en )
1932-01-21
Improvements in or relating tothe recovery of tin from scrap tinned plate and like tin-carrying material
AU2901430B
(en )
1931-10-22
Improvements in or relating to the treatment of ores and similar material
AU1774229A
(en )
1929-09-03
Improvements in or relating tothe reduction of metallic ores and tothe manufacture of metals and metallic alloys
CY21A
(en )
1931-11-02
Process and apparatus for the reduction of pyritic ores
AU619727A
(en )
1927-06-28
Improvements in or relating to processes for working up complex ores and metallurgical products
AU2771930B
(en )
1931-04-02
Improvements in ore classifiers
CA306837A
(en )
1930-12-23
Process of treating zinciferous and composite ores
CA233566A
(en )
1923-08-14
Process of dissolving or recovering metal contained in metalliferous ores
AU220626A
(en )
1926-06-10
Improvements in or relating tothe concentration of metalliferous ores
AU3034630A
(en )
1931-06-04
Improvements in process of recovering metals
CA298342A
(en )
1930-03-18
Roasting and reduction of metallic ores
CY53A
(en )
1937-09-27
Improvements in or relating to the recovery of gold from ores
AU2984630A
(en )
1931-11-05
Improvements in and relating to the agglomeration of finelydivided ferruginous ores, concentrates and the like
AU498026A
(en )
1927-04-05
Improvements in and relating to steel and like metal coach manufacture
CA254320A
(en )
1925-10-06
Process for recovering metals contained in ores
AU2852330B
(en )
1931-08-27
Process for separating gold and antimony contained in sulphide of antimony ores
IE11402L
(en )
1931-04-30
Iron ore agglomeration
AU761527A
(en )
1927-09-27
Improvements in or relating to processes of extracting volatilizable metals from ores and metallurgical products
CA304092A
(en )
1930-09-23
Reduction of metals out of their ores
AU2837530B
(en )
1931-07-09
Process for obtaining metals from sulphide ores