Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
2000-01-21
2000-11-28
Siegel, Mitchell
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
2399
Patent
active
D0434488&
REFERENCES:
patent: D426632 (2000-06-01), Arbucci
patent: 3421429 (1969-01-01), Stone
patent: 3520093 (1970-07-01), Painter
Randall L. Smith, Prior Art Air Diffusers manufactured by the applicant, Figs. 1-5. No Date Supplied.
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