| All Patents in class 144/226 |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
 | 13,696 | Oct. 23, 1855 | J. Bell | Dovetailing-machine |
 | 14,899 | May 13, 1856 | M. Roberts | Cutter-head for lathes |
 | 19,035 | Jan. 05, 1858 | G.H. Mallary | Method of dovetailing rotary cutters in their heads |
 | 98,240 | Dec. 28, 1869 | F. Ellis | Improvement in hoop-cutting and dressing-machine |
 | 181,230 | Aug. 15, 1876 | J.H. Whitaker | Improvement in cutter-heads |
 | 200,980 | Mar. 05, 1878 | C.M. Coulter | Improvement in cutter-heads |
 | 236,636 | Jan. 11, 1881 | S.J. Shimer, G.G. Shimer | Cutter-head |
 | 276,323 | Apr. 24, 1883 | R.H. Ainsworth | Cutter-head |
| | 294,006 | Feb. 26, 1884 | H.S. Boynton | Cutter-head |
 | 370,542 | Sep. 27, 1887 | J.C. Humphreys | Cutter-head |
