| All Patents in class 408/177 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 48,594 | Jul. 04, 1865 | E. Schlenker | Bolt Cutter | bolt cutters |
| 154,346 | Aug. 25, 1874 | A. Saunders | Screw Cutting Dies | taps and dies |
| 263,402 | Aug. 29, 1882 | C. Hart | Die Stock for Cutting Threads | tap wrenches and die stocks |
| 443,775 | Dec. 30, 1890 | C.L. Libby | Attachment for Turret Lathes | metal lathe accessories and attachments |
| 490,676 | Jan. 31, 1893 | H.W. Oster | Adjustable die-stock | tap wrenches and die stocks |
| 599,968 | Mar. 01, 1898 | A.D. Laws | Screw Cutting Device | taps and dies |
| 639,232 | Dec. 19, 1899 | C.J. Harrington | Screw Cutting Die | tap and die holders |
| 655,061 | Jul. 31, 1900 | I. Culver | Adjustable Die Stock | tap and die holders |
| 812,870 | Feb. 20, 1906 | H.W. Oster | Die-stock | taps and dies |
| 827,656 | Jul. 31, 1906 | H.W. Oster | Die-stock | taps and dies |
| 1,176,812 | Mar. 28, 1916 | J.W. Bradley | Expanding Boring Head and Screwing Head | boring heads |
| 1,655,542 | Jan. 10, 1928 | L.S. Hall | Die head for threading machines and the like | pipe threading machines |
