Donald E. Vail

📍 Enid, OK: #15 of 61 inventorsTop 25%

🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%

Overall (All Time): #2,300,705 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5197212	Auxiliary ripper tooth attachment for use in conjunction with a backhoe	—	1993-03-30
5115583	Auxiliary ripper tooth for backhoe	—	1992-05-26