Room humidifier

Details Room humidifier Room humidifier

1980-09-19

1982-08-17

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2304

Patent

active

D02658526

REFERENCES:
patent: D255927 (1980-07-01), Vesper
patent: 1624226 (1927-04-01), Elters
patent: 2161001 (1939-06-01), Bedol
patent: 2494640 (1950-01-01), Abbott
patent: 3225679 (1965-12-01), Meyer
patent: 3227064 (1966-01-01), Spangle
patent: 3419217 (1968-12-01), White et al.
patent: 4006674 (1977-02-01), Culver
patent: 4056049 (1977-11-01), Stuckey
patent: 4226174 (1980-10-01), Vesper
patent: 4307656 (1981-12-01), Vesper

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