Blower inlet control device
United States Patent 2603411
US Patent References:
/0491407.html
- - 0491407
Automatic damper
- - 1767869
Heating system
- - 2026399
Air control
- - 2273458
Oil burner draft control
- - 2385317
/0491407.html
- - 0491407
Automatic damper
- - 1767869
Heating system
- - 2026399
Air control
- - 2273458
Oil burner draft control
- - 2385317
Inventors:
Ewald, Trumpa
Publication Date:
07/15/1952
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Export Citation:
Assignee:
Ewald, Trumpa
Primary Class:
Other Classes:
236/1G, 415/159
International Classes:
F23L3/00; F23L13/02; F23L13/06; F23L13/00
Foreign References:
| CH201900A | ||||
| GB496351A |