Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1998-07-02
1999-09-21
Siegel, Mitchell
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D21386, 2399
Patent
active
D04142578
REFERENCES:
patent: D264499 (1982-05-01), Lundy
patent: D271238 (1983-11-01), Valencia
patent: D300076 (1989-02-01), Evans
patent: D346020 (1994-04-01), Kellogg et al.
patent: D358204 (1995-05-01), Ferrier
patent: 5357686 (1994-10-01), Jensen
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