Ultrasonic humidifier

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified

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D02904993

REFERENCES:
patent: D258758 (1981-03-01), Johnson
patent: D281101 (1985-10-01), Tsuji
patent: 2211407 (1940-08-01), Christensen
patent: 3253820 (1966-05-01), Seil
Sweets Catalogue File-1982-vol. 2, .sctn.15.3-Carrier Heat Pumps, #388Q, p. 2.
Electrical Merchandising Week, 6/5/1961, General Electric Air Purifier, p. 38.

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