| All Patents in class 408/158 |
Patents 1 -
15
of 33
      |
| Number | Date | Patentee | Title | Type |
| 295,466 | Mar. 18, 1884 | J.B. Wallace | Cutting Tool | drill bits |
| 346,103 | Jul. 27, 1886 | C. Holly | Milling Tool | milling machine cutters |
| 422,340 | Feb. 25, 1890 | F.N. Gardner | Die for Screw Cutting | tap and die holders |
| 432,972 | Jul. 29, 1890 | L.T. Bowman | Bolt Threading Machine | metal threading machines |
| 536,815 | Apr. 02, 1895 | W. Murchey | Nipple Cutting Machine | pipe cutting machines |
| 578,802 | Mar. 16, 1897 | G.E. Witherell | Thread Cutter | tap and die holders |
| 642,312 | Jan. 30, 1900 | F.A. Errington | Automatically Opening or Closing Die | taps and dies |
| 757,494 | Apr. 19, 1904 | W. Pohlman | Expansion Boring Tool | boring heads |
| 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 | |
| 1,076,188 | Oct. 21, 1913 | B. Borden | Thread-cutting tool | taps and dies |
| 1,132,536 | Mar. 16, 1915 | A.J. Prance | Screw-cutting tap | tapping heads and chucks |
| 1,148,510 | Aug. 03, 1915 | W.H. Gates | Self Opening Adjustable Die Head | tap and die holders |
| 1,209,306 | Dec. 19, 1916 | V.R. Koontz | Collapsible tap | taps and dies |
| 1,345,744 | Jul. 06, 1920 | R.A. Boehm | Collapsible Tap | taps and dies |
