| All Patents in class 470/181 |
Patents 1 -
15
of 60
      |
| Number | Date | Patentee | Title | Type |
| 9,729 | May 17, 1853 | A.H. Longley | Improvement in Machines for Cutting Wooden Screws | wood threading machines |
| 211,742 | Jan. 28, 1879 | A. Johnson | Thread Cutting Tool for Metal Screw Machines | screw machines |
| 233,821 | Oct. 26, 1880 | J.H. Vinton | Machine for Cutting Screw Threads | metal threading machines |
| 317,209 | May 05, 1885 | L.C. Rodier | Lathe | pipe making machines |
| 318,654 | May 26, 1885 | J.L. Rathbun | Tapping Device | tap and die holders |
| 329,830 | Nov. 03, 1885 | M.W. Grovesteen | Electric Signaling Apparatus for Machinery | metal lathe accessories and attachments |
| 407,537 | Jul. 23, 1889 | G. Landmann | Machine for Making Screws | screw machines |
| 564,223 | Jul. 21, 1896 | A.D. Quint | Automatic reversing mechanism for tool-holders | drill presses |
| 583,883 | Jun. 08, 1897 | G.R. Baldwin | Tapping Machine | tapping machines |
| 597,732 | Jan. 25, 1898 | A.J. Morse | Threading Machine | metal threading machines |
| 610,208 | Sep. 06, 1898 | H.A. Tuttle | Tapping-machine | tapping machines |
| 688,653 | Dec. 10, 1901 | F. Lambert | Tool-operating machine | drill presses |
| 713,004 | Nov. 04, 1902 | J. Hunter | Tool Holder | tap and die holders |
| 742,291 | Oct. 27, 1903 | L.H. Colburn | Upright Tapping and Boring Machine | drill presses |
| 832,221 | Oct. 02, 1906 | H.A. Tuttle | Tapping-machine | tapping machines |
