Shingle

Details Shingle Shingle

1989-02-09

1991-01-08

Word, A. Hugo

Building units and construction elements

Architectural stock material

Panel, tile or applique or floor, wall, roof, etc.

Patent

active

D03136582

REFERENCES:
patent: D51438 (1917-10-01), Caron
patent: D131018 (1942-01-01), Coburn
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patent: 2253652 (1941-08-01), Ritter
patent: 2302183 (1942-11-01), Burns
patent: 2347250 (1944-04-01), Burnett
patent: 2661303 (1953-12-01), Fasold et al.
patent: 3104184 (1963-09-01), Wengenroth
patent: 3903340 (1975-09-01), Shepherd
patent: 4301633 (1981-11-01), Neumann
patent: 4768318 (1988-09-01), Freiborg

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