Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1979-03-26
1981-01-20
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02580020
REFERENCES:
patent: D56925 (1921-01-01), Humphrey
patent: D117590 (1939-11-01), Wilson
patent: D166653 (1952-04-01), Warren
patent: D229409 (1973-11-01), Luckenbill
patent: 1868037 (1932-07-01), Weatherhead, Jr.
patent: 2342425 (1944-02-01), Parkor
patent: 2674786 (1954-04-01), Crawley
patent: 2871032 (1959-01-01), Woodling
patent: 3112127 (1963-11-01), Campbell
Aliczky Laszlo
Gallagher Bernard J.
Houdek Mark R.
Wennerstrom Erling G.
Cajon Company
Largen James R.
Sharpe, III Albert P.
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