RG

Richard B. Graham

DI Dresser Industries: 3 patents #98 of 787Top 15%
📍 Columbus, OH: #1,065 of 3,880 inventorsTop 30%
🗺 Ohio: #23,384 of 73,341 inventorsTop 35%
Overall (All Time): #1,665,154 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5031964 Cutting chain for mining machines Paul Meisel, Mickey J. Hall 1991-07-16
4272952 Plastic chain and tubular link pin 1981-06-16
4186831 Connector for catenary conveyor belt idler rolls Richard N. Mercurio 1980-02-05