Arthur B. Engstrom

BI Bicycle Tools Incorporated: 1 patents #1 of 1Top 100%

📍 Maplewood, MN: #13 of 33 inventorsTop 40%

🗺 Minnesota: #407 of 2,022 inventorsTop 25%

Overall (1989): #131,112 of 140,708Top 95%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4858266	Bicycle tool	—	1989-08-22