GM

G. Edwin Malzahn

TW The Charles Machine Works: 2 patents #90 of 211Top 45%
📍 Perry, OK: #45 of 85 inventorsTop 55%
🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%
Overall (All Time): #2,320,318 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5070948 Directional rod pusher Kenneth W. Schuermann 1991-12-10
4945999 Directional rod pusher — 1990-08-07