| Patents Granted on 1920-12-21 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 1,362,595 | Dec. 21, 1920 | J.R. Blakeslee | Press | forging presses |
| 1,362,600 | Dec. 21, 1920 | H.R. Canfield | Centrifugal switch | induction motors |
| 1,362,628 | Dec. 21, 1920 | E.L. Kaunitz | Power hacksaw | handheld power reciprocating saws |
| 1,362,657 | Dec. 21, 1920 | W.S. Whyte | Tool Holder | tool holders |
| 1,362,724 | Dec. 21, 1920 | G.E. Marsden | Feed-mill | grist mills |
| 1,362,725 | Dec. 21, 1920 | G.E. Marsden | Sifter for feed-mills | grist mills |
| 1,362,790 | Dec. 21, 1920 | F. Hardinge | Gear mechanism for lathes | metal lathes |
| 1,362,797 | Dec. 21, 1920 | T.S. Hose | Hammer | hammers |
| 1,362,799 | Dec. 21, 1920 | P. Jardine | Collapsible tap | taps and dies |
| 1,362,800 | Dec. 21, 1920 | P. Jardine | Collapsible tap | |
| 1,362,810 | Dec. 21, 1920 | A. McMillan | Tool Holder | tool holders |
| 1,363,192 | Dec. 21, 1920 | W.M. Whitney | Cutter-head | cutterheads |
