| All Patents in class 81/37 |
Patents 1 -
15
of 32
      |
| Number | Date | Patentee | Title | Type |
| 17,891 | Jul. 28, 1857 | C.C. Plaisted | Bit, brace, for boring obliquely to the axis of the stock | corner braces |
| 18,282 | Sep. 29, 1857 | B.B. Hill | Bit-holder | corner braces |
| 19,028 | Jan. 05, 1858 | B.B. Hill, S.W. Adams | Bit-holder | corner braces |
| 32,618 | Jun. 25, 1861 | J.F. Cory | Bit stock with double universal joint | corner braces |
| 132,790 | Nov. 05, 1872 | Q.S. Backus | Improvement in bit-stocks | brace chucks |
| 171,255 | Dec. 21, 1875 | J.W. Anthoine | Improvement in angular bit-stocks | hand drills |
| 298,542 | May 13, 1884 | C.H. Amidon | Bit-brace | |
| 301,339 | Jul. 01, 1884 | W.R. Clarkson | Bit-brace | |
| 378,274 | Feb. 21, 1888 | A.D. White | Bit-brace | |
| 512,237 | Jan. 02, 1894 | G.D. Strayer | Angling boring brace | |
| 560,351 | May 19, 1896 | M. Goetze | Device For Producing Dimples (human) | |
| 583,922 | Jun. 08, 1897 | S. McClellan | Bit-brace with right-angled V-guide frame | |
| 585,531 | Jun. 29, 1897 | S. McClellan | Corner brace | |
| 586,053 | Jul. 06, 1897 | W.H. McCoy | Angle-Borer | drill accessories |
| 617,462 | Jan. 10, 1899 | W.W. Davis | Combination tool | combination tools |
