Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1999-01-28
2000-08-22
Siegel, Mitchell
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
2399
Patent
active
D04298071
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patent: 1973981 (1934-09-01), Hall
patent: 4573544 (1986-03-01), Hoch et al.
patent: 5792230 (1998-08-01), Moore et al.
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