| Patents Granted on 1920-12-28 |
Patents 1 -
15
of 19
      |
| Number | Date | Patentee | Title | Type |
| D56,812 | Dec. 28, 1920 | A. Harris | Screwdriver | screwdrivers |
| CA-207,033 | Dec. 28, 1920 | H.G. Norwood | Wrench | alligator wrenches |
| 1,363,222 | Dec. 28, 1920 | J.R. Beckett | Angle Plate | angle bars and angle plates |
| 1,363,274 | Dec. 28, 1920 | J.W. Saffold | Self Adjusting Wrench | self-adjust wrenches |
| 1,363,288 | Dec. 28, 1920 | C.A. Swanson | Mower-guard | hay or straw cutters |
| 1,363,312 | Dec. 28, 1920 | A.A. Clarke | Surface-treating machine | drum sanders |
| 1,363,316 | Dec. 28, 1920 | J. Dudek | Cap Wrench | jar wrenches |
| 1,363,329 | Dec. 28, 1920 | A. Levedahl | Hose-clamp | |
| 1,363,343 | Dec. 28, 1920 | H.G. Norwood | Wrench | alligator wrenches |
| 1,363,415 | Dec. 28, 1920 | F.H. Hopkins | Differential Pressure Gage | vacuum and pressure gauges |
| 1,363,465 | Dec. 28, 1920 | A.B. Gardella | Board Drop Hammer | drop hammers |
| 1,363,476 | Dec. 28, 1920 | B.S. Loveland | Scraping-tool-forming machine | tool making machines |
| 1,363,506 | Dec. 28, 1920 | W.F. Groene | Lathe | horizontal boring mills |
| 1,363,587 | Dec. 28, 1920 | B.M. Hanson | Metal Working Machine | metal slotting machines |
| 1,363,786 | Dec. 28, 1920 | J.G. Hey | Belt-gearing for drill-presses | drill presses |
