| All Patents in class 408/202 |
Patents 1 -
15
of 56
      |
| Number | Date | Patentee | Title | Type |
| 51,451 | Dec. 12, 1865 | L. Gray | Improvement in Bung-Hole Reamers | tapered reamers |
| 55,132 | May 29, 1866 | S.L. Lyford | Improvement in Gages for Augers | drill depth stops |
| 62,754 | Mar. 12, 1867 | T.C. Keith | Auger Chip Clearing Accessory | drill accessories |
| 73,162 | Jan. 07, 1868 | A. Brush | Felloe Auger & Spoke Tenoner | wheelwright |
| 74,466 | Feb. 11, 1868 | W.E. Whiting | Improvement in Gauges for Augers | drill depth stops |
| 116,901 | Jul. 11, 1871 | A. Wheeler | Improvement in Gauges for Countersinks | drill depth stops |
| 125,642 | Apr. 09, 1872 | C. Whitus | Improvement in bit-braces | braces |
| 151,571 | Jun. 02, 1874 | S.G. Dare | Improvement in Auger Stops | |
| 157,562 | Dec. 08, 1874 | J.E. Windle, J.C. Goodrich | Improvement in Bit-Gages | drill depth stops |
| 169,075 | Oct. 26, 1875 | A.B. Batson | Improvement in Bit-Gages | drill depth stops |
| 191,133 | May 22, 1877 | R. Gardiner | Improvement in gages for bits | gauges |
| 201,908 | Apr. 02, 1878 | A.E. Brockett | Bung Borer | tapered reamers |
| 232,851 | Oct. 05, 1880 | W.F. Rutter | Boring-Bit Gage | drill depth stops |
| 242,656 | Jun. 07, 1881 | W.H. King | Bit-gage | drill depth stops |
| 242,918 | Jun. 14, 1881 | S.H. Garrett | Boring Gage for Bits | drill depth stops |
