4. Liquid purification or separation
  5. Processes
  6. Including controlling process in response to a sensed condition

Robert W. Brophey

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Controlling cone of depression in a well by microprocessor contr

Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
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Method and apparatus for removal of floating immiscible liquids

Pumps – Condition responsive control of pump drive motor – Having timer or delay means
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Profile ID: LFUS-PAI-P-949891

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