Roger O. Durham

📍 Glendale, CA: #4 of 55 inventorsTop 8%

🗺 California: #1,869 of 17,285 inventorsTop 15%

Overall (1997): #26,099 of 185,788Top 15%

Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5702006	Workstand for bicycles	—	1997-12-30
5623856	Bicycle crank arm with internal flange	—	1997-04-29