|
AU1390214B
|
|
Improvements in and relating to apparatus for making and filtering solutions, applicable inthe extraction of metals from ores and for like purposes
|
|
US1110790A
|
|
Apparatus for making and filtering solutions, applicable in the extraction of metals from ores and for like purposes.
|
|
CA162764A
|
|
Ore extracting mechanism
|
|
US1143828A
|
|
Process for manufacturing anodes.
|
|
GB191306413A
|
|
Improvements in and relating to Apparatus for Making and Filtering Solutions, applicable in the Extraction of Metals from Ores and for like purposes.
|
|
US1089412A
|
|
Treatment of refractory zinc-lead ores.
|
|
GB191222855A
|
|
Improvements in and relating to the Treatment of Refractory Zinc Lead Ores.
|
|
CA126625A
|
|
Filter
|
|
GB190921584A
|
|
Improvements relating to the Treatment of Refractory Zinc-lead Ores.
|
|
GB190904358A
|
|
Improvements in and relating to Filtering Apparatus.
|
|
CA118892A
|
|
Method of extracting zinc and copper
|
|
GB190616364A
|
|
Improvements relating to the Treatment of Refractory Zinc-lead Ores.
|
