GJ

Gary R. Johnson

TI Tri-State Oil Tool Industries: 2 patents #1 of 2Top 50%
📍 Gary, IN: #1 of 5 inventorsTop 20%
🗺 Indiana: #84 of 1,070 inventorsTop 8%
Overall (1982): #14,073 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4354559 Enlarged borehole drilling method and apparatus — 1982-10-19
4354560 Apparatus for drilling enlarged boreholes — 1982-10-19