Louis N. Graves

📍 Anoka, MN: #65 of 225 inventorsTop 30%

🗺 Minnesota: #15,886 of 52,454 inventorsTop 35%

Overall (All Time): #1,307,848 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
D280380	Sharpening apparatus	—	1985-09-03
4530188	Sharpening apparatus	—	1985-07-23
4272925	Sharpening apparatus	—	1981-06-16
4197677	Blade sharpener	—	1980-04-15