Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-04-07
1983-04-26
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02687828
REFERENCES:
patent: D222633 (1971-11-01), Carter et al.
patent: D237750 (1975-11-01), Martin
patent: 1823693 (1931-09-01), McLaughlin et al.
patent: 3802168 (1974-04-01), Deckas
patent: 4127397 (1978-11-01), O'Nan
patent: 4268282 (1981-05-01), MacKenzie
Engineered Air Division of Thermal Components, Inc.
Largen James R.
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