| Patents for Van Dorn Electric Tool Co. |
Patents 16 -
25
of 25
      |
| Number | Date | Patentee | Title | Type |
| 1,692,487 | Nov. 20, 1928 | E.L. Connell | Motor-driven threading tool | |
| 1,725,212 | Aug. 20, 1929 | F. Schneider | Power hammer | |
| 1,732,038 | Oct. 15, 1929 | F. Schneider, E.L. Connell | Stud-setting machine | |
| 1,754,222 | Apr. 15, 1930 | E.L. Connell | Electric drill | |
| 1,762,202 | Jun. 10, 1930 | B.W. Sweet | Self-opening-switch lock | |
| 1,800,264 | Apr. 14, 1931 | G.H. Rempes | Tool socket | |
| 1,834,145 | Dec. 01, 1931 | E.L. Connell | Valve seating counterboring tool | |
| 1,852,736 | Apr. 05, 1932 | E.L. Connell | Drilling or tapping machine | |
| 1,854,825 | Apr. 19, 1932 | E.L. Connell | Method of making alpha collet | |
| 1,917,752 | Jul. 11, 1933 | E.L. Connell | Collet | |
