Building units and construction elements – Architectural stock material – Construction block or brick type
Patent
1986-11-28
1989-07-18
Word, A. Hugo
Building units and construction elements
Architectural stock material
Construction block or brick type
D25113
Patent
active
D03023133
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Information leaflet on Great Lakes Environmental Marine Ltd. of Chicago, Ill.
Low Cost Shore Protection--Final Report on The Erosion Control Demonstration Program; U.S. Army Corps of Engineers, 1981.
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