| All Patents in class 451/411 |
Patents 16 -
30
of 48
      |
| Number | Date | Patentee | Title | Type |
| 623,140 | Apr. 18, 1899 | H.H. Cummings | Drilling-machine | drill presses |
| 667,230 | Feb. 05, 1901 | A.B. Landis | Grinding-machine | grinders |
| 702,044 | Jun. 10, 1902 | J.T. Zika | Coping-machine | window making machines |
| 818,518 | Apr. 24, 1906 | D.T. Clemons | Double-belt sander | belt sanders |
| 822,461 | Jun. 05, 1906 | J.W. Maddox | Rubbing and polishing machine | belt sanders |
| 876,372 | Jan. 14, 1908 | R.C. Matthews | Surface Grinding Machine | surface grinders |
| 1,064,572 | Jun. 10, 1913 | G.D. Trogdon | Sanding-machine | sanding machines |
| 1,189,557 | Jul. 04, 1916 | F.N. Gardner, F.E. Gardner | Grinding-machine | drum sanders |
| 1,191,045 | Jul. 11, 1916 | H. Verwer | Sanding and polishing apparatus | sanding machines |
| 1,218,044 | Mar. 06, 1917 | L.E. Beaman | Milling Machine | milling machines |
| 1,260,096 | Mar. 19, 1918 | S.J. Todd | Work Holder for Milling Machines | milling machine accessories |
| 1,285,159 | Nov. 19, 1918 | J.N. Heald | Grinding Machine | |
| 1,286,292 | Dec. 03, 1918 | B.P. Graves | Milling Machine | milling machines |
| 1,426,496 | Aug. 22, 1922 | H.M. Norris | Center Drain Turntable | drill press accessories |
| 1,965,259 | Jul. 03, 1934 | W.D. Archea, M. Romaine | Milling Machine | milling machines |
