Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1979-10-11
1981-12-29
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02624850
REFERENCES:
patent: D190987 (1961-08-01), Margolies
patent: D191432 (1961-10-01), Chapman
patent: D212418 (1968-10-01), Doman
patent: D230402 (1974-02-01), Graning, Jr.
patent: D231675 (1974-05-01), Fee
patent: 907261 (1908-12-01), Martin
patent: 4110851 (1978-09-01), Rapatel
Largen James R.
Universal-Rundle Corporation
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