Closure type screened ventilator
United States Patent 2995079
US Patent References:
/0318912.html
- - 0318912

/0848917.html
- - 0848917

/0856926.html
- - 0856926

Sound deadener
- - 1865677

Vent shutter grille
- - 2525371


Inventors:
Fontaine, William LA. E.
Publication Date:
08/08/1961
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Assignee:
Fontaine, William LA. E.
Primary Class:
International Classes:
F24F13/12; F24F13/10
US Patent References:
2553866Intake ventilating hood
2828683Ventilating apparatus