Fan heater

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Portable

Patent

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D23381

Patent

active

D03108716

REFERENCES:
patent: D257059 (1980-09-01), Schade
patent: D277130 (1985-01-01), Schade
patent: D281352 (1985-11-01), Chang
patent: D289794 (1987-05-01), Yabe
patent: D291350 (1987-08-01), Sherman et al.
patent: 2260233 (1941-10-01), Ripley
patent: 4110600 (1978-08-01), Spotts et al.
patent: 4350472 (1982-09-01), Morimoto
Tatung Fan catalogue, p. 5, Fan Heaters EH-1501 and EH-1503, left middle side of page.
Hong Kong Household, Sep./83, p. 55, Box Fan 1, left bottom side of page.

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