4. Solid material comminution or disintegration
  5. Apparatus
  6. Cooperating comminuting surfaces

Douglas Hoffman

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Concave-convex faceting method and apparatus

Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
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Milling wheels for small flour mills

Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent

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Profile ID: LFUS-PAI-P-935910

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