Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-12-10
1977-04-26
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02441357
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patent: 3067434 (1962-12-01), Neal et al.
patent: 3203007 (1965-08-01), Olson
patent: 3590398 (1971-07-01), Jeffer
Baker Charles P.
Largen James R.
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