| All Patents in class 408/188 |
Patents 1 -
15
of 20
      |
| Number | Date | Patentee | Title | Type |
| 8,806 | Mar. 16, 1852 | J.P. Owen | Improvement in machines for cutting screws on rails and posts of bedsteads | specialty woodworking machines |
| 28,279 | May 15, 1860 | Z.L. Jacobs | Screw Plate | tap and die holders |
| 112,063 | Feb. 21, 1871 | J.C. Mills | Improvement in Auger-Bits | adjustable drill bits |
| 135,314 | Jan. 28, 1873 | F.D. Bliss | Die Plates | tap and die holders |
| 206,920 | Aug. 13, 1878 | E.P. Baville | Screw Cutting Stock and Tool | tap and die holders |
| 263,550 | Aug. 29, 1882 | G.B. Malette | Screw Plate | |
| 288,188 | Nov. 06, 1883 | A.J. Smart | Screw-cutting machines | screw machines |
| 350,366 | Oct. 05, 1886 | G. Holstein | Die for Cutting Screws | taps and dies |
| 419,174 | Jan. 14, 1890 | J.A. Becher | Revolving Turret Bolt Threading Machine | metal threading machines |
| 464,568 | Dec. 08, 1891 | C.A. Johnson | Screw Cutting Die | taps and dies |
| 605,407 | Jun. 07, 1898 | C. Dumaw, Jr. | Countersinker | countersinks |
| 762,947 | Jun. 21, 1904 | A.M. Saunders | Screw Threading Die .. | taps and dies |
| 807,166 | Dec. 12, 1905 | C.W. Grant | Tool-holder and tool | lathe tool holders and tool posts |
| 863,515 | Aug. 13, 1907 | J.O. Dixon | Screw Threading Machine | metal threading machines |
| 881,449 | Mar. 10, 1908 | G.A. Smith | Thread Cutting Device | alligator wrenches |
