| All Patents in class 74/842 |
Patents 1 -
10
of 72
      |
| Picture | Number | Date | Patentee | Title |
 | 13,766 | Nov. 06, 1855 | S.W. Shryock | Drilling and Boring Machine |
 | 22,323 | Dec. 14, 1858 | R. Wilson | Machine for drilling metal |
 | 40,459 | Nov. 03, 1863 | G.S. Corwin | Improved boring-machine |
 | 41,546 | Feb. 09, 1864 | W. Stivers | Improvement in drills |
 | 42,914 | May 24, 1864 | S.U. King | Improvement in boring-machines |
 | 43,364 | Jun. 28, 1864 | J. Edgecomb | Improvement in boring-machines |
 | 49,933 | Sep. 12, 1865 | G. Johnson, D. Stanley | Improvement in boring-machines |
 | 53,981 | Apr. 17, 1866 | T.M. Howard | Improved drilling-machine |
 | 59,420 | Nov. 06, 1866 | J. Letterel | Improvement in machines for tenoning spokes |
 | 67,826 | Aug. 13, 1867 | D. Warner, W.F. Peiffer, A.F. Lepper | Improvement in drilling-machines |
