Paving stone

Details Paving stone Paving stone

1999-07-07

2000-06-06

Zarfas, Louis S.

Building units and construction elements

Architectural stock material

Construction block or brick type

2501

Patent

active

D04263170

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patent: 4997308 (1991-03-01), Welling, Jr.
patent: 5496129 (1996-03-01), Dube
McCauley Limited brochure, Rainstone 1 Block, 2 pages, 1992.
Uni-Group U.S.A., "The Environmentally Beneficial Paving System", Uni-Eco Stone Brochure, 1993.
"Super Decor" interlocking paving stone, p. 11: Sweet's General Building and Renovation Catalog, vo. 3, 1993; Anchor Concrete Products Inc., Buyline 6518, 04200/ANC.
Borgwardt, Sonke, Concrete Precasting Plant and Technology, "Performance and Fields of Application for Permeable Paving Systems", Feb. 1997, pp. 100-105.

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