Donald L. Duckworth

📍 Roanoke, VA: #7 of 32 inventorsTop 25%

🗺 Virginia: #300 of 1,409 inventorsTop 25%

Overall (1997): #158,588 of 185,788Top 90%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5609416	Portable continual mixer	—	1997-03-11