Extrusion

Details Extrusion Extrusion

1994-12-01

1996-12-24

Zarfas, Louis S.

Building units and construction elements

Architectural stock material

Extruded shape

D25119

Patent

active

D03768554

REFERENCES:
patent: D232893 (1974-09-01), Moretini
patent: D315027 (1991-02-01), Abbestam et al.
patent: 742549 (1903-10-01), Zeh et al.
patent: 3144881 (1964-08-01), Sproull
patent: 3256671 (1966-06-01), Handley
patent: 4918765 (1990-04-01), Harding
patent: 5061219 (1991-10-01), Glickman

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