4. Ventilation
  5. Having outlet airway
  6. Having readliy movable air regulating louver, damper, or cover

Daniel L. Karst

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Air deflectors to accommodate multiple size ventilator outlets

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector
Utility Patent

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Damper flap and duct connector assembly

Ventilation – Having outlet airway – Having readliy movable air regulating louver – damper – or cover
Reexamination Certificate

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Door chime assembly and method

Communications: electrical – Audible indication – Percussion-type sound producer
Reexamination Certificate

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Grille

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Design Patent

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Hanger assembly

Supports – Brackets – On extensible column mounted between opposed surfaces
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2012089

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