Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Patent
1996-11-29
1997-12-16
Lichtenstein, Lisa
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
D23378, D23381, D23412, 2304
Patent
active
D03878600
REFERENCES:
patent: D59975 (1921-12-01), Nakamura
patent: D376843 (1996-12-01), Wortham
patent: 4850804 (1989-07-01), Huang
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