| All Patents in class 451 |
Patents 1 -
10
of 3611
      |
| Picture | Number | Date | Patentee | Title |
| | 5,385X | Mar. 03, 1829 | W. Robinson | Grinding steel dies used to make steel buttons |
 | 5,658X | Oct. 10, 1829 | D. Curtis, L.B. Prindle | Rubbing down and polishing combs |
| | 6,308X | Dec. 27, 1830 | R. Humphrey | Thrashing machine |
 | 7,010X | Apr. 19, 1832 | G.A. Madeira | Machinery for holding and grinding edge tools |
 | 8,224X | May 28, 1834 | J. Wheaton | Elliptical Spindle Grinder |
 | 8,434X | Oct. 06, 1834 | O. Stone | Saw-mill strap |
| | 8,706X | Mar. 24, 1835 | P. Cooper | Grinding and polishing stone, glass, etc. |
| | 9,287X | Dec. 15, 1835 | W. Child | Application of polishing slate for sharpening razors |
| | 2,329 | Nov. 03, 1841 | T.J. Cornell | Machine for Dressing Granite |
 | 2,656 | May 30, 1842 | R.M. Hoe | Machinery for grinding and polishing metallic surfaces, particularly saw-plates |
