Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-07-20
1986-04-22
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02835371
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patent: 3277634 (1966-10-01), Wheaton
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patent: 4364758 (1982-12-01), Clements et al.
patent: 4396408 (1983-08-01), Mace
Largen James R.
Standard Havens, Inc.
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