| All Patents in class 408/148 |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 79 | Nov. 14, 1836 | H. Crum | Wood-screw-threading machine, &c. | wood threading machines |
| 419,174 | Jan. 14, 1890 | J.A. Becher | Revolving Turret Bolt Threading Machine | metal threading machines |
| 569,902 | Oct. 20, 1896 | F.E. Wells, W.C. Wells | Machine for Making Nipples | pipe making machines |
| 635,272 | Oct. 17, 1899 | E.H. Williams | Screw Cutting Tool | metal lathe accessories and attachments |
| 644,748 | Mar. 06, 1900 | C.A. Svensson | Screw Tap | taps and dies |
| 816,322 | Mar. 27, 1906 | J.H. Haskins | Bolt Threading Machine | metal threading machines |
| 909,749 | Jan. 12, 1909 | I.W. Sprink, F.L. Brown | Adjustable Collapsing Tap | tapping heads and chucks |
| 1,038,670 | Sep. 17, 1912 | O.A. Smith | Threading Die | |
| 1,127,457 | Feb. 09, 1915 | A.B. Landis | Cutter-head | metal threading machines |
| 1,456,805 | May 29, 1923 | V.R. Koontz | Die head | taps and dies |
| 1,704,741 | Mar. 12, 1929 | J. Hartness | Automatic Die | taps and dies |
| 1,979,024 | Oct. 30, 1934 | R.R. Finn, E.T. Bysshe | Screw Threading Die | taps and dies |
| 2,333,163 | Nov. 02, 1943 | R.R. Finn | Automatic Die | taps and dies |
| 2,533,254 | Dec. 12, 1950 | E.B. Whigam | Lathe Tool | lathe tool holders and tool posts |
| 2,905,028 | Sep. 22, 1959 | J. Massari | Contractile Tool Holder | drilling and boring tool holders |
