| All Patents in class 451/262 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 79,784 | Jul. 07, 1868 | E. Snyder | Polishing Slate, &c. | stone dressing machines |
| 151,079 | May 19, 1874 | M.H. Brooksbank | Metal Rolling Machines | metal rolling machines |
| 191,640 | Jun. 05, 1877 | J.P. Beck | Improvement in sandpapering-machines | sanding machines |
| 389,291 | Sep. 11, 1888 | A. Dey | Razor-sharpening machine | sharpening apparatus |
| 411,587 | Sep. 24, 1889 | A. Dey | Razor-sharpening machine | sharpening apparatus |
| 417,983 | Dec. 24, 1889 | G.W. Bugbee, F. Danner | Drawer-fitting machine | sanding machines |
| 445,749 | Feb. 03, 1891 | A.K. Devenport | Sandpapering-machine | sanding machines |
| 449,950 | Apr. 07, 1891 | L.J. Gregor, J.F. Rodgers | Sandpapering-head | sanding machines |
| 494,715 | Apr. 04, 1893 | I. Grasset | Device for Polishing Precious Stones | polishing and buffing machinery |
| 543,458 | Jul. 30, 1895 | J. Berry | Machine for Sharpening Insertable Saw Teeth | saw sharpening machines |
| 1,281,366 | Oct. 15, 1918 | L.R. Heim | Method of Grinding Hardened Rolls | |
| 1,638,028 | Aug. 09, 1927 | F.E. Gardner | Grinding machine | disk sanders |
| 1,670,111 | May 15, 1928 | E.B. Gardner | Grinding machine | |
