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Construction
Class Information
Number:
454/350
Name:
Ventilation
>
Having outlet airway
>
With air pump
>
Having readily movable air regulating louver,damper, or cover
> Wall mounted air pump
Description:
Subject matter wherein the air exhausting means is supported by and withdraws air through an interior, side structural barrier of the ventilated space.
Sub-classes under this class:
Class Number
Class Name
Patents
454/351
Plural damper panel
14
Patents under this class:
Patent Number
Title Of Patent
Date Issued
6666762
Ventilation system
Dec. 23, 2003
5167578
Soffit mount air ventilator
Dec. 1, 1992
5123875
Power actuated roof vent apparatus and method of use
Jun. 23, 1992
5105732
Wall fan with proctective cover device
Apr. 21, 1992
4738190
Fan casing with cover
Apr. 19, 1988
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