Electric fan

Details Electric fan Electric fan

1985-12-26

1987-07-21

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23122

Patent

active

D02909979

REFERENCES:
patent: D188580 (1960-08-01), Habener
patent: D199343 (1964-10-01), Kimberley
patent: D204349 (1966-04-01), Kategianis
patent: D238278 (1975-12-01), Baker, Jr.
patent: D267424 (1982-12-01), Boldt et al.
patent: D284504 (1986-07-01), Okamoto et al.
patent: D286673 (1986-11-01), Kahn
patent: 2936109 (1960-05-01), Copeland

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