| Patents Granted on 1921-11-29 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 1,398,234 | Nov. 29, 1921 | H.A. Landis | Variable Angle Screwdriver | screwdriver mechanisms |
| 1,398,338 | Nov. 29, 1921 | J.F. Mirrielees | Lubricating device for drill-presses and the like | drill presses |
| 1,398,382 | Nov. 29, 1921 | A.R. Lambert, J.W. Lambert | Chain Tread Tractor | tractors |
| 1,398,679 | Nov. 29, 1921 | C.J. Clark | Tool Holder | drilling and boring tool holders |
| 1,398,779 | Nov. 29, 1921 | L.S. Hayden | Tool for boring and counterboring wood | drill bits |
| 1,398,871 | Nov. 29, 1921 | R.L. Livingston | Dividers | dividers |
