Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Patent
1998-05-22
1999-09-21
Lichtenstein, Lisa
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
2304
Patent
active
D04142543
REFERENCES:
patent: 2986765 (1961-06-01), Wolf et al.
patent: 3816983 (1974-06-01), Sawada et al.
patent: 4636230 (1987-01-01), Fan
Bulton Enterprises Co., Ltd.
Lichtenstein Lisa
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