Room air cleaner

Details Room air cleaner Room air cleaner

1982-12-06

1984-12-11

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Patent

active

D02767481

REFERENCES:
patent: D266585 (1982-10-01), Rakocy
patent: D267114 (1982-11-01), Lynch, Jr. et al.
patent: D269996 (1983-08-01), Smith et al.
patent: 3750370 (1973-08-01), Brauss et al.
patent: 3928008 (1975-12-01), Petersen
patent: 4148618 (1979-04-01), Christenson
patent: 4252547 (1981-02-01), Johnson
patent: 4268285 (1981-05-01), Mason
patent: 4361427 (1982-11-01), Barradas
patent: 4377399 (1983-03-01), Bryson
patent: 4391773 (1983-07-01), Flanagan

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