Title:
Room air conditioner mixing fresh and recirculated air
United States Patent 2540957
Inventors:
Newton, Alwin B.
Publication Date:
02/06/1951
Other Classes:
62/305, 62/289, 62/200, 62/414, 62/317, 62/507, 62/427, 62/408
International Classes:
F24F1/02