4. Conveyors: fluid current
  5. Having means for maintaining load in suspension along flow path
  6. By fluid whirling action

David Andrew Hadfield

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Conveyor apparatus

Conveyors: fluid current – Having means for maintaining load in suspension along flow path – By fluid whirling action
Reexamination Certificate

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Fluid processing for separating emulsions

Liquid purification or separation – Diverse distinct separators – Including a filter
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