J. David Duford

📍 Ronan, MT: #13 of 21 inventorsTop 65%

🗺 Montana: #1,498 of 3,198 inventorsTop 50%

Overall (All Time): #3,674,556 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D389519	Mechanical carpenter's pencil	—	1998-01-20