Roy S. Drake

📍 Sioux Falls, SD: #7 of 20 inventorsTop 35%

🗺 South Dakota: #16 of 82 inventorsTop 20%

Overall (1997): #86,424 of 185,788Top 50%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

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