Conrad Bahr
Contributions in the toolbox
- 1918
Torque wrench invented for NYC water-main flange bolts.
→ Bolt Torque from Preload - 1918
Torque wrench patented — tightening becomes a number.
→ Torque Converter
Torque wrench invented for NYC water-main flange bolts.
→ Bolt Torque from PreloadTorque wrench patented — tightening becomes a number.
→ Torque Converter