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Fine material screw washer

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Funnel apparatus for mining gold

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gold and silver separator

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gold mining pan

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gold pan

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gold pan with agitator knobules and insert cup

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gold pan with flukes and stratifiers

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gold pan with water delivery cups

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gold retrieving pan

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gold separator

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gravel washer separator

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gravitational separation

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Gravitational separator employing an improved eluent supply syst

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Hand held classifying device

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Heavy metals separator

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Jig pulsion mechanism

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Jigging method and apparatus for gravity separation in the fine

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Jigging screen device with pneumatic valve control

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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Log washer with staggered paddles

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Reexamination Certificate

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Material concentrator

Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent

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