Portable smoke dissipation fan

Details Portable smoke dissipation fan Portable smoke dissipation fan

1980-01-14

1983-08-09

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2304

Patent

active

D02700883

REFERENCES:
patent: D196341 (1963-09-01), Gardner
patent: D226665 (1973-04-01), Knowles
patent: D232554 (1974-08-01), Benjamin
patent: D239884 (1976-05-01), Johanna
patent: D246730 (1977-12-01), Tomaro
patent: D253253 (1979-10-01), Rakocy
patent: D253908 (1980-01-01), Holder, Jr.
patent: 3099386 (1963-07-01), Pieper
patent: 3647323 (1972-03-01), Thomas
patent: 3809504 (1974-05-01), Goossens

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