Upper vent head

Details Upper vent head Upper vent head

1992-09-08

1994-05-24

Word, A. Hugo

Building units and construction elements

Architectural stock material

Extruded shape

Patent

active

D03472868

REFERENCES:
patent: D226374 (1973-02-01), Dallaire et al.
patent: D285611 (1986-09-01), Slocomb, Jr.
patent: 3473266 (1969-10-01), Miller
patent: 3796008 (1974-03-01), Eakin
patent: 4949506 (1990-08-01), Dorham, Jr.

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