Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-07-28
1983-09-27
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D 7407, D2303
Patent
active
D02707543
REFERENCES:
patent: D82669 (1930-12-01), Forster
patent: 3219098 (1965-11-01), Fulmer
patent: 4125360 (1978-11-01), Culbertson
Burke Wallace R.
Wilder Lynn
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