Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1979-05-07
1982-03-16
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02634147
REFERENCES:
patent: D210724 (1968-04-01), Rosenheim
patent: D243850 (1977-03-01), Davenport
patent: D253123 (1979-10-01), Jones
patent: 4143431 (1979-03-01), Goncalves
patent: 4203172 (1980-05-01), Goncalves
Largen James R.
Ohlandt John F.
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