| All Patents in class 408/67 |
Patents 1 -
15
of 34
      |
| Number | Date | Patentee | Title | Type |
| 13,606 | Sep. 25, 1855 | E.R. Morrison, A. Wyckoff | Boring-machine | woodworking horizontal borers |
| 31,883 | Apr. 02, 1861 | S.P. Gilbert | Hollow Auger | hollow bits |
| RE3,133 | Sep. 22, 1868 | L. Stevens | Improvement in Boring Machines | drilling and boring |
| 111,167 | Jan. 24, 1871 | O.O. Witherell, A. Bauman | Improvement in hollow augers | hollow bits |
| 117,567 | Aug. 01, 1871 | W.P. Powers | Pump auger | drilling and boring |
| 143,412 | Oct. 07, 1873 | N.C. Hubbell | Machines for Making Metal Screws | screw machines |
| 166,490 | Aug. 10, 1875 | S.L. Worsley | Machine for Tapping Nuts | nut or bolt making machines |
| 197,070 | Nov. 13, 1877 | S.L. Worsley | Metal-Screw Threading Machine | metal threading machines |
| 438,605 | Oct. 21, 1890 | F.S. Cook | Nut Tapping Machine | nut or bolt making machines |
| 465,838 | Dec. 29, 1891 | L.B. Curtis | Pipe Threading Attachment for Lathes | metal lathe accessories and attachments |
| 479,244 | Jul. 19, 1892 | D. Chase | Sawing-machine | cylindrical saws |
| 489,772 | Jan. 10, 1893 | B.D. Whitney | Stave-sawing machine | cooper |
| 518,262 | Apr. 17, 1894 | C.W. Meggenhofen, A.S. Cortright | Boring-machine | drill bits |
| 606,575 | Jun. 28, 1898 | A.Y. Pearl | Auger | auger bits |
| 628,981 | Jul. 18, 1899 | G. Griffin | Automatic Button Lathe | button making machinery |
