Portable electric fan

Details Portable electric fan Portable electric fan

1991-04-15

1992-09-08

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Patent

active

D03292843

REFERENCES:
patent: D252641 (1979-08-01), Lazar
patent: D267424 (1982-12-01), Boldt et al.
patent: D284504 (1986-07-01), Okamoto et al.
patent: D286673 (1986-11-01), Kahn
patent: D290997 (1987-07-01), Utsuki
patent: D315598 (1991-03-01), Yamamoto et al.

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