Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-12-12
1977-03-08
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02436108
REFERENCES:
patent: 2692163 (1954-10-01), Geel
patent: 2889994 (1959-06-01), French
patent: D201240 (1965-06-01), Beinert
patent: D229932 (1974-01-01), Goodrich
Home Furnishings Daily, Sept. 24, 1962, p. 43, "Cal-Dak" item.
Bowen Duane C.
Largen James R.
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