Ventilating skylight with two simultaneously operated closures
United States Patent 3350819
US Patent References:
/0778204.html
- - 0778204

/0925252.html
- - 0925252

/0985148.html
- - 0985148

Electrical apparatus
- - 2111009

Skylight
- - 2120060


Inventors:
Polidoro, John E.
Kelly, Edward C.
Publication Date:
11/07/1967
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Assignee:
Polidoro, John E.
Kelly, Edward C.
Primary Class:
52/1
Other Classes:
52/72, 454/358, 49/1, 52/200, 49/143, 454/333, 454/334, 49/73.100
International Classes:
E04D13/03; F24F7/02
US Patent References:
2127099Ridge type ventilator
2198488Electrical apparatus
2278581Attic ventilator
2701515Window ventilator
2750868Air control apparatus
2799772Combined light and air distributor
3094915Roof ventilator
3230859Ventilators