Building units and construction elements – Architectural stock material – Construction block or brick type
Patent
1992-08-27
1993-12-28
Word, A. Hugo
Building units and construction elements
Architectural stock material
Construction block or brick type
Patent
active
D03427951
REFERENCES:
patent: D255787 (1980-07-01), Morehead, Jr.
patent: D266361 (1982-09-01), Coelho dos Santos
patent: D275997 (1984-10-01), Rassias et al.
patent: 868838 (1907-10-01), Brenington
patent: 2022590 (1935-11-01), Dziarski
patent: 2688245 (1954-09-01), Vesper
patent: 4627209 (1986-12-01), Schwartz
Armijo Dennis F.
Clark Doris
CSTW, Inc.
Peacock Deborah A.
Word A. Hugo
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