| Patents for Nelson Johnson |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 194 | May 15, 1837 | N. Johnson, H. Johnson | Sawmill-gate clasps | sawmills |
| 73,338 | Jan. 14, 1868 | N. Johnson | Improvement in Swages for Saw Teeth | |
| 80,632 | Aug. 04, 1868 | N. Johnson | Improvement in head-blocks for sawmills | sawmill headblocks |
| 88,176 | Mar. 23, 1869 | N. Johnson | Saw Gummer | saw gummers |
| 96,008 | Oct. 19, 1869 | N. Johnson | Saw Gummer | saw gummers |
| 127,061 | May 21, 1872 | N. Johnson | Improvement in circular-saw teeth | saw teeth |
| 127,062 | May 21, 1872 | N. Johnson | Improvement in saw-mills | sawmill headblocks |
| 133,036 | Nov. 12, 1872 | N. Johnson | Improvement in saws | saw teeth |
| 134,290 | Dec. 24, 1872 | N. Johnson | Improvement in insertible saw-teeth | insertable saw teeth |
| CA-2,450 | Jun. 11, 1873 | W.E. Craig, N. Johnson | Circular saw teeth | insertable saw teeth |
| 200,833 | Mar. 05, 1878 | N. Johnson | Improvement in means for securing insertible saw-teeth | insertable saw teeth |
| 211,097 | Jan. 07, 1879 | N. Johnson | Improvement in insertible saw-teeth | insertable saw teeth |
| 313,427 | Mar. 03, 1885 | N. Johnson | Saw-tooth | insertable saw teeth |
