CH19785A
(en )
1900-09-30
Apparatus for the treatment of gold and other ores by amalgamation
FR360602A
(en )
1906-04-27
Use of autoclaves in metallurgy for the treatment of ores and the separation of metals
FR336726A
(en )
1904-03-16
Method and apparatus for the treatment of iron sand and other refractory ores
FR352608A
(en )
1905-08-16
Method and apparatus for the treatment of sulphides and other ores
FR348866A
(en )
1905-05-01
Apparatus for the treatment of pyrites
FR322430A
(en )
1903-02-05
Process for the treatment of ores containing nickel and copper
FR348535A
(en )
1905-04-15
Apparatus for magnetic separation of ores
FR426950A
(en )
1911-07-21
Process and apparatus for the treatment of gold and other alluviums
FR321392A
(en )
1903-01-09
Improved process and apparatus for the industrial treatment of mattes and raw metals in a reverberation furnace
FR803E
(en )
1903-04-02
Improved process and apparatus for the industrial treatment of mattes and raw metals in a reverberation furnace
CH16849A
(en )
1899-02-28
Device for the treatment of impotence
FR447225A
(en )
1912-12-27
Method and apparatus for the treatment of ferro-chromes, and other iron alloys
FR451291A
(en )
1913-04-15
Process for treating ores and other materials to extract metals
CH19168A
(en )
1900-05-15
Apparatus for the treatment of sewage and other similar liquids
FR348297A
(en )
1905-04-08
Apparatus for turning malt and other similar materials
FR1332E
(en )
1903-07-13
Improved process and apparatus for the industrial treatment of mattes and raw metals in a reverberation furnace
CH16760A
(en )
1899-02-15
Apparatus for extracting gold from ores by amalgamation
FR467330A
(en )
1914-06-09
Process for the treatment of ores and intermediate products containing radium and mesothorium
FR348294A
(en )
1905-04-08
Treatment of ores by electrolysis
FR4406E
(en )
1905-07-12
Treatment of ores by electrolysis
FR461029A
(en )
1913-12-17
Method and apparatus for the treatment of ores and metals
FR481872A
(en )
1917-01-24
Method and apparatus for processing ores and other materials
FR419575A
(en )
1911-01-10
Process and apparatus for the chlorination of copper and other ores
FR402110A
(en )
1909-09-29
Method and apparatus for the treatment of ores and the like
FR397760A
(en )
1909-05-17
Transportable and removable furnace for the treatment of ores and the extraction of the metals they contain