Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1996-03-13
1997-05-27
Baynham, Holly
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
2399
Patent
active
D03795039
REFERENCES:
patent: D261924 (1981-11-01), Donohue
House and Home, Mar. 1962, p. 244, smoke chamber located at bottom left of page.
Heatilator brochure, Sep. 1, 1971, cover, smoke chamber located in middle of page.
Popular Mechanics, May 1962, p. 146, smoke chamber.
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