| All Patents in class 408/68 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 6,668 | Aug. 28, 1849 | J. Garside, H.J. Betjemann | Machinery for cutting screws in bedsteads |
 | 25,289 | Aug. 30, 1859 | G.H. Burger, G. Taylor | Auger for Cutting Round Tenons |
 | 94,870 | Sep. 14, 1869 | W.A. Clark | Improved Washer-Cutter |
 | 117,786 | Aug. 08, 1871 | D.S. Kniffen | Improvement in Plug-Cutters for Wood-Workers |
| | 157,700 | Dec. 15, 1874 | C. Sellers | Machines for Threading Bolts |
| | 498,811 | Jun. 06, 1893 | P. O'Donoghue, S.P. Orth | Device for Cutting Pearl, &c. |
 | 515,388 | Feb. 27, 1894 | B.D. Whitney | Machine for cutting barrel-staves, &c. |
 | 2,323,380 | Jul. 06, 1943 | D.M. Davis | Screw Machine |
