Building units and construction elements – Architectural stock material – Panel – tile or applique or floor – wall – roof – etc.
Patent
1987-06-19
1992-07-07
Word, A. Hugo
Building units and construction elements
Architectural stock material
Panel, tile or applique or floor, wall, roof, etc.
Patent
active
D03277488
REFERENCES:
patent: D21730 (1892-07-01), Spadone
patent: D215587 (1969-10-01), Bogan, Jr.
patent: 236784 (1881-01-01), Cowles
patent: 1076017 (1913-10-01), Chase
patent: 2216250 (1940-10-01), Nelson
patent: 2570076 (1951-10-01), Sims
patent: 4436779 (1984-03-01), Menconi et al.
patent: 4468910 (1984-09-01), Morrison
1981 Sweet's Catalogue File Section 5.19/FL p. 22 Cast Iron Floor Grid for Concrete Floors Middle of Page item 493 Type.
Clark Doris
Word A. Hugo
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