Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-09-12
1986-05-06
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02837269
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Jones David A.
Richards Randall G.
Largen James R.
The Drackett Company
Zeller Charles J.
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