Title:
Thermostatic heat conserving damper
United States Patent 3366333
Inventors:
Diehl, Charles G.
Publication Date:
01/30/1968
Other Classes:
236/101D, 236/101R
International Classes:
F23L11/00; G05D23/08; G05D23/01
US Patent References:
| 2711080 | Air conditioning unit with overload protection | | | |