LandOfFree - US Patents - Listing for Ventilation,Having forced recirculation

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Variable air volume control apparatus

Ventilation – Having forced recirculation – Including unitary housing having both inlet and outlet airways

Reexamination Certificate

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Ventilating system

Ventilation – Having forced recirculation – Including unitary housing having both inlet and outlet airways

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Ventilating system

Ventilation – Having forced recirculation – Including unitary housing having both inlet and outlet airways

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Ventilator

Ventilation – Having forced recirculation – Including automatic control means

Patent

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Venturi type air distribution system

Ventilation – Having forced recirculation – Forced recirculation alone

Reexamination Certificate

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Vertical ventilator for outdoors and/or indoors

Ventilation – Having forced recirculation – Forced recirculation alone

Reexamination Certificate

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Wall curb for HVAC system

Ventilation – Having forced recirculation – Forced recirculation alone

Reexamination Certificate

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Wind direction adjusting device

Ventilation – Having forced recirculation – Forced recirculation alone

Patent

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Wind direction control apparatus and method for an air condition

Ventilation – Having forced recirculation – Forced recirculation alone

Patent

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Working system for aeroplane

Ventilation – Having forced recirculation – For use with heating and cooling means

Patent

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Year round selective dehumidifying and humidifying apparatus...

Ventilation – Having forced recirculation – Forced recirculation alone

Reexamination Certificate

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