| All Patents in class 451/294 |
Patents 31 -
45
of 106
      |
| Number | Date | Patentee | Title | Type |
| 1,259,343 | Mar. 12, 1918 | W.J. Bayrer | Belt-gearing | drill presses |
| 1,261,156 | Apr. 02, 1918 | C.H. Norton | Belt Drive for Grinding Machines | |
| 1,262,945 | Apr. 16, 1918 | S. Hardy | Saw Sharpening Implement | saw sharpening machines |
| 1,275,218 | Aug. 13, 1918 | C.H. Calkins | Machine for Grinding Worm Threads | |
| 1,277,377 | Sep. 03, 1918 | R.L. Carter | Sanding-machine | oscillating spindle sanders |
| 1,289,375 | Dec. 31, 1918 | F.E. Bright | Grinding Machine | |
| 1,295,359 | Feb. 25, 1919 | N.G. Olson | Electrically-operated abrading-machine | oscillating spindle sanders |
| 1,352,582 | Sep. 14, 1920 | A.A. Clarke | Surface-treating device | |
| 1,352,583 | Sep. 14, 1920 | A.A. Clarke | Surface-treating machine | drum sanders |
| 1,391,039 | Sep. 20, 1921 | C.H. Beach | Electric Grinder | |
| 1,392,325 | Oct. 04, 1921 | B.M. Hanson | Vertical Surface Grinding Machine | surface grinders |
| 1,406,843 | Feb. 14, 1922 | M.B. Gathman | Cutter-head spindle for planers and molders | wood planers |
| 1,407,381 | Feb. 21, 1922 | A.A. Clarke | Surface-treating tool | drum sanders |
| 1,407,834 | Feb. 28, 1922 | C. Bouillon | Machine Tool Driving Mechanism | metalworking machine mechanisms |
| 1,411,538 | Apr. 04, 1922 | A.H. Sweetland | Hand drill | handheld power drills |
