HC

Harry J. Campbell

📍 Excelsior, MN: #7 of 18 inventorsTop 40%
🗺 Minnesota: #1,168 of 4,231 inventorsTop 30%
Overall (2005): #194,289 of 245,428Top 80%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D507836 Adjustable ladder leveling extension — 2005-07-26