| All Patents in class 408/186 |
Patents 1 -
10
of 26
      |
| Picture | Number | Date | Patentee | Title |
 | 14,105 | Jan. 15, 1856 | H. McGrath | Bit for boring fellies and tenoning spokes |
 | 117,786 | Aug. 08, 1871 | D.S. Kniffen | Improvement in Plug-Cutters for Wood-Workers |
| | 134,777 | Jan. 14, 1873 | W.E. Ward | Screw Cutting Dies |
 | 279,204 | Jun. 12, 1883 | J. Swan | Adjustable Auger |
 | 328,320 | Oct. 13, 1885 | F. Leu | Countersink |
 | 412,952 | Oct. 15, 1889 | C. Elterich | Tap and holder therefor |
| | 418,903 | Jan. 07, 1890 | M. Weiss | Hollow Mill |
| | 456,462 | Jul. 21, 1891 | B.B. Allen | Reamer |
 | 559,372 | May 05, 1896 | C. Elterich | Tap |
| | 637,133 | Nov. 14, 1899 | H. Kupsch | Open Die Head |
