Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-11-07
1987-03-10
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02887142
REFERENCES:
patent: D191396 (1961-09-01), Weber, III
patent: D228911 (1973-10-01), Gatter
patent: D241847 (1976-10-01), Jones
patent: 2578827 (1951-12-01), Munnecke
patent: 2738225 (1956-03-01), Meek
patent: 4063665 (1977-12-01), Schneider et al.
Submicron Air Filter-"Heating & Air Conditioning Contractor"-Aug. 1968, p. 54.
Britt William J.
Wilson Daniel C.
Burke Wallace R.
The Dow Chemical Company
Vinson Brian N.
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