Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-07-08
1977-05-24
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02444518
REFERENCES:
patent: D192589 (1962-04-01), Katzman
patent: D196914 (1963-11-01), Regal
patent: D206574 (1967-01-01), Cook
patent: 2136085 (1938-11-01), Roe et al.
patent: 3733060 (1973-05-01), Merritt
patent: 3873806 (1975-03-01), Schossow
Burke Wallace R.
Jones Larry
Nigon Joseph P.
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