Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-01-05
1985-12-10
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02817144
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Acorn Engineering Company 15p Catalog, published in early 1976, p. 10.
Hafner V. Walter
Morris Earl L.
Sally Theodore J.
Averill, Jr. Edgar W.
Largen James R.
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