4. Pipe joints or couplings
  5. With assembly means or feature
  6. Handle or handwheel for rotary engagement

John F. Bently

Inventor

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Air nozzle/flexible whip cleaning means for ductwork

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent

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Fluid powered-scouring whip for cleaning remote areas

Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Reexamination Certificate

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Quick connector for joining large diameter vacuum hose to ductwo

Pipe joints or couplings – With assembly means or feature – Handle or handwheel for rotary engagement
Patent

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Vent cover bracket

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent

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Profile ID: LFUS-PAI-P-1289376

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