| Patents for N. B. Smith |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | 75,533 | Mar. 17, 1868 | L.L. Davis | Spirit Level |
 | 75,534 | Mar. 17, 1868 | L.L. Davis | Improvement in Adjustable Spirit Levels |
 | 75,835 | Mar. 24, 1868 | A.P. Barlow | Improvement in mode of lubricating the slides of muley-saw mills |
| | 77,494 | May 05, 1868 | M. Jones | Corn Husker, Sheller, etc |
 | D3,195 | Sep. 22, 1868 | L.L. Davis | Design for a Spirit Level |
 | 82,994 | Oct. 13, 1868 | E.P. Russell | Nut Wrench |
 | 102,770 | May 10, 1870 | B.F. Buxton | Wrench |
 | 150,301 | Apr. 28, 1874 | F.L. Delfer | Wrenches |
 | 153,534 | Jul. 28, 1874 | J.C. Butterfield | Improvement in trip-hammers |
 | 156,276 | Oct. 27, 1874 | J.C. Butterfield | Improvement in power-hammers |
