Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-10-28
1984-08-28
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D21157, D11158
Patent
active
D02753111
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Fredrich Thomas Industries, Inc.
Largen James R.
Lavine Irvin A.
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