4. Classifying, separating, and assorting solids
  5. Sifting
  6. Distributers or spreaders

Joseph P. McDonald

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System for recovering and recycling usable fibers from white...

Classifying – separating – and assorting solids – Sifting – Distributers or spreaders
Reexamination Certificate

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System for separating fluid-borne material from a fluid that...

Classifying – separating – and assorting solids – Sifting – Distributers or spreaders
Reexamination Certificate

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