Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-12-08
1977-07-05
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02449374
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patent: 2112290 (1938-03-01), Holland
patent: 3470826 (1969-10-01), Foulds
Knobbe Louis J.
Largen James R.
Wasco Products, Inc.
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