Title:
Damper construction
United States Patent 3204548
US Patent References:
Ventilator shutter
- - 2355412

Automatic ventilating shutter
- - 2594944

Air conditioning system
- - 3095799


Inventors:
Mccabe, Francis J.
Publication Date:
09/07/1965
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Assignee:
Air, Balance
Primary Class:
454/352
Other Classes:
49/92.100, 49/91.100, 454/353
International Classes:
F24F13/15
Foreign References:
GB582140A