|
US1698780A
|
|
Puzzle board
|
|
US1336553A
|
|
Slime-thickener
|
|
US1279845A
|
|
Discharge-gate for slime-thickeners.
|
|
US1156276A
|
|
Slime-thickener for dewatering mine-tailings.
|
|
US1133461A
|
|
Screen for separating sand from slime.
|
|
US1111300A
|
|
Movable spray for mineral-washing.
|
|
US1123254A
|
|
Adjustable swinging spray for mineral-washing.
|
|
US1098020A
|
|
Process for treating cyanidable ores containing deleterious slimes.
|
|
US1106630A
|
|
Hydraulic classifier for separating sand and slime.
|
|
US1104969A
|
|
Pulp-distributer for concentrators.
|
|
US1078775A
|
|
Pulp-distributer.
|
|
US1081436A
|
|
Method of aerating solutions.
|
|
US1035165A
|
|
Slime-concentrator.
|
|
US906205A
|
|
Concentrating apparatus.
|
|
US908966A
|
|
Concentrating apparatus.
|
|
US898331A
|
|
Concentrating apparatus.
|
