DH

David L. Hardgrove

📍 North Canton, OH: #5 of 38 inventorsTop 15%
🗺 Ohio: #715 of 3,574 inventorsTop 25%
Overall (1989): #123,028 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4817307 Bumper mounting assembly for a snowplow — 1989-04-04