| Patents for none listed |
Patents 421 -
435
of 3142
      |
| Number | Date | Patentee | Title | Type |
| 1,278,706 | Sep. 10, 1918 | J.N. Martin, A.W. Martin | Lock for Grease Caps | |
| 1,279,017 | Sep. 17, 1918 | H.M. Schnabel | Valve Lifter For Automobiles | valve spring tools |
| 1,279,153 | Sep. 17, 1918 | A.W. Peterson | Adjustable Support for Drills and the Like | |
| 1,279,302 | Sep. 17, 1918 | J.M. Dunlap | Drill Gage and Countersink | drill depth stops |
| 1,279,703 | Sep. 24, 1918 | W.A. James | Surface Indicator | measurement gauges |
| 1,279,759 | Sep. 24, 1918 | C.E. Reed | Drill Head | |
| 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 |
