Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-07-02
1977-10-04
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02459914
REFERENCES:
patent: D179739 (1957-02-01), McClelland
patent: D181332 (1957-11-01), Anderson
patent: D186915 (1959-12-01), Nettles
patent: D211875 (1968-08-01), Porter
patent: D234081 (1975-01-01), Kish
patent: 2202147 (1940-05-01), Gerriets
patent: 3065767 (1962-11-01), Topf
patent: 3159306 (1964-12-01), Lyall
patent: 3350044 (1967-10-01), Zulauf
patent: 3363797 (1968-01-01), Roese
Largen James R.
Robic Raymond A.
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