Roof ridge ventilator

Details Roof ridge ventilator Roof ridge ventilator

1982-09-13

1985-01-15

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Patent

active

D02772299

REFERENCES:
patent: D271713 (1983-12-01), Hicks
patent: 2388759 (1945-11-01), Moore
patent: 2579662 (1951-12-01), Gibson
patent: 2780978 (1957-02-01), Peirson
patent: 2799214 (1957-07-01), Roose
patent: 2954727 (1960-10-01), Katt et al.
patent: 3079853 (1963-03-01), Smith
patent: 3236170 (1966-02-01), Meyer et al.
patent: 3949657 (1976-04-01), Sells
patent: 4007672 (1977-02-01), Luckey
patent: 4102090 (1978-07-01), Anguish
patent: 4280399 (1981-07-01), Cunning

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