Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling
Patent
1986-09-12
1989-01-24
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Patent
active
D02995247
REFERENCES:
patent: D162969 (1951-04-01), MacDougall
patent: D275029 (1984-08-01), Boldt et al.
patent: D280760 (1985-09-01), Kogan
Hardware Age (Jan., 1974) p. 66, Preway Heater "B".
Industrial Design (1955) p. 96, Raytheon "Micronaire" room Air Cleaner.
Burke Wallace R.
Vinson Brian N.
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