David C. Hoyle

📍 Gaylord, MI: #1 of 11 inventorsTop 10%

🗺 Michigan: #416 of 1,972 inventorsTop 25%

Overall (1982): #70,595 of 81,411Top 90%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4337939	Ankle exercise device	Sue Kandarian	1982-07-06