Roof vent

Details Roof vent Roof vent

1992-02-11

1993-06-29

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Patent

active

D03369528

REFERENCES:
patent: D276543 (1984-11-01), Hisey
patent: 2825276 (1958-03-01), Porter
patent: 4538508 (1985-09-01), Ballard
patent: 4549475 (1985-10-01), Snyder
patent: 4593504 (1986-06-01), Bonnici et al.
Adelta Manufacturing Co., Inc. Cat., p. 14, Chimney Hood, bottom left side of page.

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