Air adjusting device for a furnace heating unit
United States Patent 2839080
US Patent References:
/0206890.html
- - 0206890

/1036302.html
- - 1036302

Exhaust cut-out
- - 1488568

Register
- - 1611735

Sliding register
- - 1740626


Inventors:
Copeland, Charles V.
Publication Date:
06/17/1958
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Assignee:
WAYNE HOME EQUIPMENT COMPANY
Primary Class:
137/625.400
Other Classes:
126/15A, 454/308, 454/329, 251/212, 251/345
International Classes:
F23C7/00; F23D11/00
Foreign References:
DE522006C