Title:
Roof ventilator
United States Patent 3094915
US Patent References:
Ventilator
- - 2157609

Roof ventilator
- - 2628551

Roof ventilator
- - 2638835


Inventors:
Leigh, Robert L.
Publication Date:
06/25/1963
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Assignee:
LEIGH PROD INC
Primary Class:
International Classes:
E04D13/03; F24F7/02