Air purifier

Details Air purifier Air purifier

1995-02-22

1997-02-11

Lichtenstein, Lisa P.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

D23355

Patent

active

D03779742

REFERENCES:
patent: D258759 (1981-03-01), Johnson
patent: 3757495 (1973-09-01), Sievers

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