4. Liquid purification or separation
  5. Particulate material type separator, e.g., ion exchange or...
  6. With rehabilitation means

Gary D. Haggard

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Underdrain filtration system with stamped perforations

Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – With rehabilitation means
Reexamination Certificate

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Underdrain filtration system with stamped perforations

Metal working – Method of mechanical manufacture – Multiperforated metal article making
Reexamination Certificate

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Underdrain unit for granular filtration system

Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – With rehabilitation means
Patent

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Profile ID: LFUS-PAI-P-1806073

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