Title:
TEMPERATURE RESPONSIVE FOUNDATION VENTILATOR
United States Patent 3528606

Inventors:
Witten, Alvin E.
Publication Date:
09/15/1970
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Assignee:
Alvin, Witten E.
Primary Class:
236/48R
Other Classes:
236/49.500, 454/258, 454/278
International Classes:
F24F11/053; F24F13/15; F24F11/04; F24F7/00
US Patent References:
3368756Temperature responsive ventilator
3436016TEMPERATURE RESPONSIVE VENTILATOR WITH COILED LEAF SPRING
3450344THERMOSTATIC VALVES FOR CONTROLLING THE FLOW OF FLUIDS




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