All Patents in class 408/151 |
Patents 1 -
10
of 32
      |
Picture | Number | Date | Patentee | Title |
| 113,740 | Apr. 18, 1871 | J.M. Carpenter | Improved Machine for Cutting Screws |
| 244,427 | Jul. 19, 1881 | W.L. Bergen | Screw Cutting Device |
 | 409,208 | Aug. 20, 1889 | A.B. Landis | Screw-cutting head |
| 409,253 | Aug. 20, 1889 | R. Pemberton, J.H. Sternbergh | Screw Cutting Die Stock |
 | 509,253 | Nov. 21, 1893 | G.A. Shields | Safety-guard for rip-saws |
 | 585,204 | Jun. 29, 1897 | C.A. Higbee | Thread-cutting tool |
 | 643,713 | Feb. 20, 1900 | O.E. Converse | Boring attachment for metal-working lathes |
 | 1,017,883 | Feb. 20, 1912 | A.B. Landis | Cutter-head |
 | 1,017,885 | Feb. 20, 1912 | A.B. Landis | Cutter-head |
 | 1,017,886 | Feb. 20, 1912 | A.B. Landis | Cutter-head |