JH

James E. Hammer

📍 Lake Forest Park, WA: #2 of 5 inventorsTop 40%
🗺 Washington: #611 of 2,427 inventorsTop 30%
Overall (1997): #136,126 of 185,788Top 75%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5688078 Interlocking retaining walls blocks and system — 1997-11-18