MP

Martin Roy Piel

TW The Charles Machine Works: 1 patents #133 of 211Top 65%
📍 Perry, OK: #60 of 85 inventorsTop 75%
🗺 Oklahoma: #6,781 of 12,736 inventorsTop 55%
Overall (All Time): #3,498,142 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6832443 Cutting chain John H. Walgren 2004-12-21