| All Patents in class 408/204 |
Patents 16 -
30
of 33
      |
| Number | Date | Patentee | Title | Type |
| 51,252 | Nov. 28, 1865 | A. Wyckoff | Improvement in machines for boring tubes | wood drilling and boring |
| RE2,204 | Mar. 13, 1866 | A. Wyckoff | Pump-Log Hollow Auger | hollow bits |
| 53,722 | Apr. 03, 1866 | A. Wyckoff | Pump-Log Hollow Auger | hollow bits |
| 76,278 | Mar. 31, 1868 | A.C. Vaughan | Improvement in Augers | hollow bits |
| 111,414 | Jan. 31, 1871 | C.T. Watson | Improvement in stave-sawing machines | barrel making machines |
| 239,056 | Mar. 22, 1881 | D.K. Overhiser | Reamer | reamers |
| 254,286 | Feb. 28, 1882 | F.S. Dellenbaugh | Hollow auger | hollow bits |
| 356,280 | Jan. 18, 1887 | E.E. Elder | Machine for sawing wooden gutters | specialty woodworking machines |
| 379,602 | Mar. 20, 1888 | J.J. Philbrick | Barrel-head-making machine | cooper |
| 548,073 | Oct. 15, 1895 | W.V. Long | Sawing machine | |
| 640,108 | Dec. 26, 1899 | H.M. Dalzell | Tubular Crown Saw | button making machinery |
| 669,473 | Mar. 05, 1901 | C.W. Blood | Boring-machine | drilling and boring |
| 818,062 | Apr. 17, 1906 | S.H. Tucker | Expansible bit | adjustable drill bits |
| 1,187,618 | Jun. 20, 1916 | G.O. Gridley | Metal-turning tool | metal lathe accessories and attachments |
| 5,213,456 | May 25, 1993 | L.G. Lee | Plug cutter | |
