Duane Roscoe

📍 Quinton, VA: #15 of 23 inventorsTop 70%

🗺 Virginia: #18,729 of 34,511 inventorsTop 55%

Overall (All Time): #3,946,383 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4723871	Inexpensive headwall for culverts	—	1988-02-09