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US4639313A
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Floatation apparatus for concentration of minerals from high water content aqueous slurries
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US2681751A
|
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Constrictor valve
|
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US2696298A
|
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Hydraulic classification of minerals
|
|
US2582302A
|
|
Material separating apparatus
|
|
US2547794A
|
|
Distributor for dividing a flowing stream of material
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US2398261A
|
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Flexible coupling
|
|
US2250737A
|
|
Apparatus for screening materials
|
|
US2309486A
|
|
Screening apparatus
|
|
US2242562A
|
|
Material separating apparatus
|
|
US2171355A
|
|
Means for producing compound motion
|
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US2122569A
|
|
Process for refining gypsum
|
|
US2039573A
|
|
Apparatus for feeding liquid
|
|
US1999673A
|
|
Screening apparatus
|
|
US1845374A
|
|
Sand blending apparatus
|
|
US1883186A
|
|
Apparatus for screening materials
|
|
US1845373A
|
|
Vibrating screen
|
|
US1896595A
|
|
Screen for granular materials
|
|
US1468575A
|
|
Driving mechanism for ore concentrators
|
|
US1486827A
|
|
Driving mechanism for ore concentrators
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US1245611A
|
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Feeding appliance for ore-concentrators.
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