HL

Howard R. Longbrake

📍 Grafton, OH: #2 of 5 inventorsTop 40%
🗺 Ohio: #490 of 2,550 inventorsTop 20%
Overall (1982): #57,977 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4320892 Knife sharpener 1982-03-23