Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Patent
1992-02-24
1993-04-20
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
Patent
active
D03349764
REFERENCES:
patent: D180777 (1957-08-01), Ganger
patent: 1473045 (1923-11-01), Puttaert et al.
patent: 2095223 (1937-10-01), Samuels
Hong Kong Enterprise, Oct. 1990 p. 285, Fans 669F, 700F, 668F, 6831MF and 6831F, top of page.
Burke Wallace R.
John Manufacturing Limited
Lichtenstein Lisa
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