Roy S. Drake

📍 Sioux Falls, SD: #257 of 532 inventorsTop 50%

🗺 South Dakota: #1,077 of 2,308 inventorsTop 50%

Overall (All Time): #3,717,371 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5636458	Curb shoe for plow blade	—	1997-06-10