RR

Robert J. Race

KS Keystone Retaining Wall Systems: 2 patents #1 of 3Top 35%
📍 Eagan, MN: #11 of 97 inventorsTop 15%
🗺 Minnesota: #643 of 4,860 inventorsTop 15%
Overall (2003): #45,302 of 273,478Top 20%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6615561 Retaining wall block Robert A. MacDonald 2003-09-09
6536994 Grooved retaining wall block and system — 2003-03-25