| All Patents in class 451/178 |
Patents 1 -
10
of 22
      |
| Picture | Number | Date | Patentee | Title |
 | 14,421 | Mar. 11, 1856 | J.W. Bicknell, H.D. Stover | Machine for cutting irregular forms |
| | 130,014 | Jul. 30, 1872 | C. Burkholder | Improvement in Grindstones |
| | 238,549 | Mar. 08, 1881 | L.J. Baker | Machine for Grinding Knives, &c. |
 | 273,970 | Mar. 13, 1883 | W.H. Doane | Sand-paper machine |
| | 337,515 | Mar. 09, 1886 | S.I. Phelps | Molding-polisher |
 | 341,867 | May 18, 1886 | L.W. Andrews | Grinding-machine |
 | 405,389 | Jun. 18, 1889 | E.F. Autenrieth | Planer-matcher |
| | 575,319 | Jan. 19, 1897 | H.G. Barr | Cutter and Reamer Grinder |
| | 799,641 | Sep. 19, 1905 | W.R. Fox | Grinding-machine |
| | 973,135 | Oct. 18, 1910 | A.B. Nutting | Buffing and polishing machine |
