RM

Richard W. McEwen

TW The Charles Machine Works: 1 patents #4 of 14Top 30%
📍 Coyle, OK: #1 of 1 inventorsTop 100%
🗺 Oklahoma: #195 of 823 inventorsTop 25%
Overall (2003): #134,340 of 273,478Top 50%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6543551 Pipe handling device Darrel W. Sparks, Arthur D. Deken, Cody L. Sewell, Ronald A. Frazier, James E. Franklin +2 more 2003-04-08