Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-11-21
1986-08-26
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02853329
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patent: 3058719 (1962-10-01), Beebee
patent: 4335734 (1982-06-01), Trinkwalder
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patent: 4423750 (1984-01-01), Morizumi et al.
patent: 4462417 (1984-07-01), Trinkwalder
Largen James R.
Sherwood Selpac Corp.
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