|
US1511643A
|
|
Hydraulic classifier
|
|
US1394698A
|
|
Continuous method for the purification of sewage
|
|
US1240904A
|
|
Leaching apparatus.
|
|
US1283364A
|
|
Method of treating metal-bearing solutions.
|
|
US1283365A
|
|
Organized apparatus for treating cyanid slimes.
|
|
US1283363A
|
|
Continuous method of treating cyanid solutions.
|
|
US1056233A
|
|
Apparatus for separating solids from liquid solutions.
|
|
US1152769A
|
|
Apparatus for treating solid-bearing solutions.
|
|
US1041909A
|
|
Classifier.
|
|
US1042295A
|
|
Filtering apparatus.
|
|
US986608A
|
|
Roller ore-crusher.
|
|
US978238A
|
|
Centrifugal separating washing apparatus.
|
|
US937974A
|
|
Bearing.
|
|
US952653A
|
|
Centrifugal separating apparatus.
|
|
US905025A
|
|
Agitating and aerating apparatus.
|
|
US952590A
|
|
Apparatus for separating solids from liquids.
|
|
US905024A
|
|
Pressure-pump.
|
|
US878579A
|
|
Air-compressor.
|
|
US836717A
|
|
Agitating and mixing apparatus.
|
|
US806214A
|
|
Agitating and mixing apparatus.
|
