Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-01-23
1983-08-23
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
98 75, D2304
Patent
active
D02702762
REFERENCES:
patent: D204518 (1966-04-01), Jenn
patent: D217721 (1970-06-01), Guerney
patent: 1416295 (1922-05-01), Hirschman
patent: 2469096 (1949-05-01), Wilson
Fleury Noel W.
Stern Derek V.
Flettner Ventilator Limited
Largen James R.
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