CA43942A
(en )
1893-08-15
Process for extracting gold and silver from ores
CA41480A
(en )
1893-01-09
Process of extracting gold and silver from ores
CA44621A
(en )
1893-11-03
Process of extracting gold and silver from ores and the like
CA43568A
(en )
1893-07-11
Wet process for extracting gold and silver
CA43524A
(en )
1893-07-07
Apparatus and solvent for extracting gold and silver
GB189325071A
(en )
1894-03-17
Method and Apparatus for Extracting Gold and Silver from their Ores by the Combined Action of Amalgamation and Centrifugal Force.
CA44757A
(en )
1893-11-22
Process of treating gold and silver ores and a composition of matter for the same said process
CA44771A
(en )
1893-11-25
Method of extracting metals of ores
CA41402A
(en )
1892-12-29
Method of extracting gold and silver from ore
GB189323431A
(en )
1894-01-06
Improved Means applicable for Use in Extracting Gold and Silver from Auriferous and Argentiferous Solutions.
CA51297A
(en )
1896-02-12
Process of and apparatus for extracting gold, etc., from ore
GB189513537A
(en )
1896-05-23
A Process for Precipitating Gold and other Precious Metals from Solutions Used for Extracting such Metals from their Ores.
CA43692A
(en )
1893-07-20
Method of extracting metals from ores and other compounds
GB189518116A
(en )
1896-09-26
An Improved Process for the Extraction of Gold and Silver from their Ores.
CA42457A
(en )
1893-04-05
Process of and apparatus for extracting metals from ores
CA52108A
(en )
1896-04-27
Process of and apparatus for extracting gold and silver from ore
CA42553A
(en )
1893-04-11
Process of amalgamating gold and silver by means of mercury
GB189518177A
(en )
1896-01-04
Process and Apparatus for the Extraction of Gold and Silver from their Ores, and from other Auriferous and Argentiferous Substances.
GB189423006A
(en )
1895-06-15
An Improved Process for the Extraction of Gold from its Ores, and Apparatus Employed therefor.
CA51596A
(en )
1896-03-09
Process of extracting gold from ore
CA40628A
(en )
1892-10-11
Process of extracting nickel from ores
GB189418279A
(en )
1895-09-21
An Improved Process for Extracting Precious Metals from their Ores.
GB189313949A
(en )
1894-08-18
Improved Method and Apparatus for Separating, Amalgamating, and Concentrating Ores.
CA43802A
(en )
1893-08-01
Method of separating gold from its chloride solutions
CA49959A
(en )
1895-09-11
Process of and apparatus for extracting gold and silver for their ores