4. Liquid purification or separation
  5. Processes
  6. Ion exchange or selective sorption

Peter Dufresne

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Regeneration of perchloroethylene

Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent

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Regeneration of phosphate ester lubricating fluids

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic phosphorus compound – wherein the phosphorus is...
Patent

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Roadway water ramp apparatus

Road structure – process – or apparatus – Drain or gutter – With conduit support means
Patent

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Roadway water ramp apparatus

Road structure – process – or apparatus – Traffic director – Vibration inducing member
Reexamination Certificate

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Profile ID: LFUS-PAI-P-52738

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