| All Patents in class 470/60 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 149 | Mar. 25, 1837 | T.W. Harvey | Machine for Cutting and Heading Wire for the Manufacture of Wood-Screws | screw machines |
| 3,893 | Jan. 23, 1845 | S. Brooks | Making Wood Screws | screw machines |
| 151,522 | Jun. 02, 1874 | C.F. Twichell | Machines for Nicking Metal Screws | screw machines |
| 183,211 | Oct. 10, 1876 | C.D. Rogers | Machine for Nicking Screws | screw machines |
| 275,431 | Apr. 10, 1883 | C.M. Spencer | Metal Screw Machine | screw machines |
| 335,955 | Feb. 09, 1886 | J. Petz | Machine for Making Bungs | bung making machines |
| 469,323 | Feb. 23, 1892 | J.E. Titus, E.L. Bowers | Slotting-machine | metal slotting machines |
| 988,802 | Apr. 04, 1911 | C. Munthe, D. Millington | Apparatus for Slitting Screws | screw machines |
| 1,465,282 | Aug. 21, 1923 | S.H. Norton | Slotting tool | metal slotting machines |
| 1,908,080 | May 09, 1933 | J.P. Thompson | Screw | |
