4. Liquid purification or separation
  5. Structural installation
  6. Closed circulating system

William D. Hawk

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Filtering apparatus having positively buoyant and negatively buo

Liquid purification or separation – Structural installation – Closed circulating system
Patent

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Filtering apparatus having positively buoyant and negatively buo

Liquid purification or separation – Flow – fluid pressure or material level – responsive – Filter cleaning
Patent

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Filtration system including a back washable pre-filtration...

Liquid purification or separation – Structural installation – Closed circulating system
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1042306

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