Air fan

Details Air fan Air fan

1993-06-25

1994-11-01

Lichtenstein, Lisa P.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

D23378, D23382

Patent

active

D03521052

REFERENCES:
patent: D101740 (1936-10-01), Kirsch
patent: D311772 (1990-10-01), Yang
patent: 2626742 (1953-01-01), Turner
patent: 3200731 (1961-09-01), Hart, Jr.
Machine Design, Jul. 1935, p. 36, Fan.

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