Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Patent
1993-12-15
1995-03-14
Lichtenstein, Lisa P.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
D11 67, D21 63
Patent
active
D03563707
REFERENCES:
patent: D156138 (1949-11-01), Majeska
patent: D171820 (1954-03-01), Philippe
patent: D223578 (1972-05-01), Labreque
patent: 4283011 (1981-08-01), Spector
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