Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Patent
1997-12-17
1998-11-24
Lichtenstein, Lisa
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
D23355, 2304
Patent
active
D04016831
REFERENCES:
patent: 2952327 (1960-09-01), Farr
patent: 3807144 (1974-04-01), Graybill
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