Donald F. Gray

📍 Owosso, MI: #1 of 7 inventorsTop 15%

🗺 Michigan: #1,023 of 4,492 inventorsTop 25%

Overall (1997): #158,435 of 185,788Top 90%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D381542	Folding chair with three legs	—	1997-07-29