| Patents for none listed |
Patents 421 -
435
of 3326
      |
| Number | Date | Patentee | Title | Type |
| 1,273,892 | Jul. 30, 1918 | T. Lund | Grinding Machine | |
| 1,273,961 | Jul. 30, 1918 | A. Walker | Boxing for Drills | |
| 1,274,084 | Jul. 30, 1918 | H.C. Ross | Milling Machine | milling machines |
| 1,274,502 | Aug. 06, 1918 | O.S. Bickford | Machine for Flutiing Twist Drill Blanks | making drills and augers |
| 1,274,591 | Aug. 06, 1918 | C.E. Quimby | Grinder | |
| 1,274,859 | Aug. 06, 1918 | L.G. Daniels | Multiple Spindle Turret Lathe | multiple spindle machines |
| 1,275,058 | Aug. 06, 1918 | C. Long | Grease Gun | grease guns |
| 1,275,455 | Aug. 13, 1918 | J.G. MacGregor | Grease Gun | grease guns |
| 1,275,833 | Aug. 13, 1918 | H.B. Bätjer | Knife Sharpener | cutler |
| 1,276,167 | Aug. 20, 1918 | S.K. Brown | Surface Finishing Machine | |
| 1,276,366 | Aug. 20, 1918 | R.P. Place, J.E. Hoy | Grinding Wheel Dresser | grinder dressers |
| 1,277,970 | Sep. 03, 1918 | N.J. McKenzie | Drilling Bit | |
| 1,277,985 | Sep. 03, 1918 | W. Merrill | Drop Hammer | drop hammers |
| 1,278,084 | Sep. 10, 1918 | J.R. Abbott | Drill | |
| 1,278,629 | Sep. 10, 1918 | H. Francis | Milling and the Like Cutter | milling machine cutters |
