Air curtain

Details Air curtain Air curtain

1994-11-02

1996-03-12

Lichtenstein, Lisa P.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Patent

active

D03679250

REFERENCES:
patent: 3362469 (1968-01-01), Berner et al.
patent: 4989501 (1991-02-01), Catan
patent: 5072658 (1991-12-01), Bogage

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