| All Patents in class 408/52 |
Patents 1 -
10
of 24
      |
| Picture | Number | Date | Patentee | Title |
| | 5,613 | Jun. 06, 1848 | J.P. Gaume | Turning Bungs |
 | 14,479 | Mar. 18, 1856 | I.W. Ward | Machines for boring holes in fence-posts |
 | 15,022 | Jun. 03, 1856 | W. Samuels, G.L. Stansbury | Boring-machine |
 | 82,803 | Oct. 06, 1868 | L.S. Colburn | Improvement in machines for boring window-blinds |
 | 90,834 | Jun. 01, 1869 | M.R. Fory | Improvement in apparatus for felling of trees |
 | 114,183 | Apr. 25, 1871 | R.L. Nelson | Improvement in machines for boring and mortising |
 | 159,279 | Feb. 02, 1875 | J. Richards, G. Richards | Improvement in boring-machines |
 | 182,463 | Sep. 19, 1876 | A. Moore | Improvement in boring-machines |
| | 309,068 | Dec. 09, 1884 | C.A. Mahle | Machine for cutting top-knots for blacking-brushes |
 | 452,053 | May 12, 1891 | F.H. Richards | Multiple drilling-machine |
