Portable air recirculator

Details Portable air recirculator Portable air recirculator

1979-09-26

1981-12-08

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2304

Patent

active

D02622351

REFERENCES:
patent: D80763 (1930-03-01), Betz
patent: D252641 (1979-08-01), LaZar
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patent: 4152973 (1979-05-01), Peterson
patent: 4185545 (1980-01-01), Rusth et al.

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