CH

Charles W. Helm

TS Teleco Oilfield Services: 1 patents #1 of 3Top 35%
📍 Rocky Hill, CT: #1 of 4 inventorsTop 25%
🗺 Connecticut: #268 of 1,269 inventorsTop 25%
Overall (1982): #72,589 of 81,411Top 90%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4319240 Electrical connector for borehole telemetry apparatus Frederick A. Stone, Ralph F. Spinnler 1982-03-09