Fan

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

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D02743540

REFERENCES:
patent: D112847 (1939-01-01), Raffy
patent: D127165 (1941-05-01), Welch et al.
patent: D128185 (1941-07-01), Welch et al.
patent: D160391 (1956-10-01), Hutcheson
patent: D209247 (1967-11-01), Ayers
patent: D267114 (1982-11-01), Lynch et al.
patent: 3966442 (1976-06-01), Waters
patent: 4154251 (1979-05-01), Doyel
patent: 4339250 (1982-07-01), Thut
patent: 4377399 (1983-03-01), Bryson

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