| All Patents in class 451/65 |
Patents 16 -
30
of 44
      |
| Number | Date | Patentee | Title | Type |
| 622,212 | Apr. 04, 1899 | R. Dutton | Twist-drill grinder | drill grinders |
| 645,578 | Mar. 20, 1900 | J.R. Thomas | Abrading-machine | sanding machines |
| 679,611 | Jul. 30, 1901 | G.A. Ensign | Spoke-finishing machine | belt sanders |
| 799,442 | Sep. 12, 1905 | H.L. Bornman | Sanding-machine | sanding machines |
| 856,662 | Jun. 11, 1907 | G.W. Smith | Face-mill grinder | tool grinders |
| 977,923 | Dec. 06, 1910 | G.A. Barker | Sandpapering-machine | sanding machines |
| 987,589 | Mar. 21, 1911 | E.S. Mummert | Grinding Machine for Sharpening Edged Tools | sharpening machines |
| 994,216 | Jun. 06, 1911 | J.M. Thompson | Grinding-machine | sharpening machines |
| 1,081,465 | Dec. 16, 1913 | J.F. Pribnow | Emery-wheel bench-grinder | bench or pedestal grinders |
| 1,153,479 | Sep. 14, 1915 | E.F. Beugler | Combined belt- and drum-sanding machine | sanding machines |
| 1,191,045 | Jul. 11, 1916 | H. Verwer | Sanding and polishing apparatus | sanding machines |
| 1,364,324 | Jan. 04, 1921 | J. Siakel | Sandpapering-machine | belt sanders |
| 1,577,478 | Mar. 23, 1926 | L.C. Marburg | Cylinder-grinding attachment | cylindrical grinders |
| 1,701,814 | Feb. 12, 1929 | W.J. Maddox | Edge and spindle sander | belt sanders |
| 1,847,045 | Feb. 23, 1932 | W.H. Evans | Reamer sharpening machine | sharpening machines |
