| All Patents in class 409/167 |
Patents 1 -
10
of 20
      |
| Picture | Number | Date | Patentee | Title |
 | 203,182 | Apr. 30, 1878 | S.T. Moffett | Improvement in machines for spirally sawing logs |
| | 270,235 | Jan. 09, 1883 | J. Martignoni | Machine for Cutting Helical Grooves in Twist Drills |
 | 333,689 | Jan. 05, 1886 | G.R. Stetson | Machine for Clearing Twist Drills |
| | 339,197 | Apr. 06, 1886 | A. Latham | Machine for Forming Counterbores Reamers and Countersinks |
 | 408,366 | Aug. 06, 1889 | H.M. Albee | Routing and woodworking machine |
 | 437,284 | Sep. 30, 1890 | W.G. Budlong | Combined metal-working machine |
 | 483,838 | Oct. 04, 1892 | W.R. Fox | Milling-machine |
| | 1,313,365 | Aug. 19, 1919 | W.E. McLaughlin, G.W. Dixon, J.H. Wilson | Metal Working Machine |
| | 1,421,030 | Jun. 27, 1922 | H.C. Rose | Circular Milling Machine |
| | 1,750,746 | Mar. 18, 1930 | H. Deutsch | Machine Tool Work Holder |
