| Patents for R. D. O. Smith |
Patents 1 -
15
of 29
      |
| Number | Date | Patentee | Title | Type |
| 68,883 | Sep. 17, 1867 | E. Jewett | Improvement in Cant Hooks | lumberjack |
| 105,352 | Jul. 12, 1870 | E.R. McKean | Improvement in Cask Gauging Instrument | measuring rods |
| 113,907 | Apr. 18, 1871 | L. Miller | Improvement in scroll-saw | scrollsaws |
| 115,600 | Jun. 06, 1871 | J.S. Crane, J.T. Gilmore | Improvement in Machines for Dressing Millstones | miller |
| 133,422 | Nov. 26, 1872 | F.L. Delfer | Wrenches | quick adjust wrenches |
| 134,237 | Dec. 24, 1872 | C.H. Amidon | Improvement in drills | eggbeater drills |
| 134,623 | Jan. 07, 1873 | C.H. Amidon | Baby Carriages | |
| 140,451 | Jul. 01, 1873 | C.H. Amidon | Improvement in drill and bit stocks | hand drills |
| 146,531 | Jan. 20, 1874 | T.P. Hiorns | Depth-Gages for Surfaces | |
| 149,128 | Mar. 31, 1874 | O.G. Howes | Planer with angled cutter | wood planers |
| 156,276 | Oct. 27, 1874 | J.C. Butterfield | Improvement in power-hammers | drop hammers |
| 159,226 | Jan. 26, 1875 | G.J. Shimer | Improvement in cutter-heads | cutterheads |
| 176,400 | Apr. 18, 1876 | J.C. Butterfield | Improvement in atmospheric hammers | drop hammers |
| 206,259 | Jul. 23, 1878 | E.S. Prime | Improvement in Wantage Rods | |
| 230,611 | Aug. 03, 1880 | J.C. Butterfield | Stamp-mill | ore processing apparatus |
