| Patents for none listed |
Patents 436 -
450
of 3266
      |
| Number | Date | Patentee | Title | Type |
| 1,279,917 | Sep. 24, 1918 | E.A. Sagui | Lathe Tool Holder | lathe tool holders and tool posts |
| 1,280,138 | Oct. 01, 1918 | G.C. Blair | Gage | measurement gauges |
| 1,281,015 | Oct. 08, 1918 | W.P. Hunt | Grinding Machine | |
| 1,281,140 | Oct. 08, 1918 | W.R. Guiberson, R.A. Conkling | Drill | |
| 1,281,499 | Oct. 15, 1918 | P. Broadbooks | Quick Action Vise | bench vises |
| 1,281,888 | Oct. 15, 1918 | S.S. Williamson | Grease Cup | |
| RE14,540 | Oct. 22, 1918 | S.H. Keefer, estate of (deceased) | Planer and System of Motor Control Therefor | machine tool controls |
| 1,283,135 | Oct. 29, 1918 | B.P. Fortin | Multiple Tool Head for Drill Presses | multiple spindle drill presses |
| 1,283,753 | Nov. 05, 1918 | R. Hazeltine | Gage | measurement gauges |
| 1,283,884 | Nov. 05, 1918 | G.A. Kellner, W.L. Patterson | Microscope | |
| 1,284,017 | Nov. 05, 1918 | H.L. Wiltstein | Gage | gauges |
| 1,284,439 | Nov. 12, 1918 | G.F. Kolb, H.A. Pedrick | Method of Making Piston Rings | making piston rings |
| 1,284,543 | Nov. 12, 1918 | W.F. Zimmermann | Gear Planer | metal shaper accessories |
| 1,285,041 | Nov. 19, 1918 | G.C. Clark | Surface Dressing Machine | |
| 1,285,478 | Nov. 19, 1918 | G.R. Van Auken | Grease Cup | |
