| Patents for N. B. Smith |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 75,533 | Mar. 17, 1868 | L.L. Davis | Spirit Level | inclinometers |
| 75,534 | Mar. 17, 1868 | L.L. Davis | Improvement in Adjustable Spirit Levels | levels |
| 75,835 | Mar. 24, 1868 | A.P. Barlow | Improvement in mode of lubricating the slides of muley-saw mills | drag saws |
| 77,494 | May 05, 1868 | M. Jones | Corn Husker, Sheller, etc | corn huskers |
| D3,195 | Sep. 22, 1868 | L.L. Davis | Design for a Spirit Level | metallic levels |
| 82,994 | Oct. 13, 1868 | E.P. Russell | Nut Wrench | pliers type wrenches |
| 102,770 | May 10, 1870 | B.F. Buxton | Wrench | quick adjust wrenches |
| 150,301 | Apr. 28, 1874 | F.L. Delfer | Wrenches | axle nut wrenches |
| 153,534 | Jul. 28, 1874 | J.C. Butterfield | Improvement in trip-hammers | drop hammers |
| 156,276 | Oct. 27, 1874 | J.C. Butterfield | Improvement in power-hammers | drop hammers |
| 171,230 | Dec. 21, 1875 | W.A. Kitts | Improvement in shingle-planers | shingle machines |
| 230,611 | Aug. 03, 1880 | J.C. Butterfield | Stamp-mill | ore processing apparatus |
| 264,859 | Sep. 26, 1882 | J.C. Butterfield | Atmospheric hammer | drop hammers |
| 291,669 | Jan. 08, 1884 | T. Beard | Saw-buck | work holding |
| 825,911 | Jul. 17, 1906 | H. Koch | Test Indicator | test indicators |
