Portable air recirculator

Details Portable air recirculator Portable air recirculator

1979-08-22

1981-12-15

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2304

Patent

active

D02623137

REFERENCES:
patent: D80763 (1930-03-01), Betz
patent: D252641 (1979-08-01), LaZar
patent: D254391 (1980-03-01), Motecalvo
patent: D254803 (1980-04-01), Rusth et al.
patent: D257485 (1980-11-01), Motecalvo
patent: 1170551 (1916-02-01), Marty
patent: 2525157 (1950-10-01), Trane
patent: 2685245 (1954-08-01), Redmond, Jr.
patent: 3106147 (1963-10-01), Cones
patent: 3173353 (1965-03-01), Watkins
patent: 3347025 (1967-10-01), Wiley

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