| Patents Granted on 1878-02-12 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 200,119 | Feb. 12, 1878 | H.G. Ashton | Improvement in Safety-Valves | steam safety valves |
| 200,165 | Feb. 12, 1878 | E.M. Boynton | Improvement in Saw Handles | saw handles |
| 200,175 | Feb. 12, 1878 | C.C. Coleman | Pipe-Wrench | self-adjust wrenches |
| 200,218 | Feb. 12, 1878 | W.T. Nicholson | File Cleaner | files |
| 200,219 | Feb. 12, 1878 | S.J. Randall, J. O'Brien | Improvement in insertible saw-teeth | insertable saw teeth |
| 200,285 | Feb. 12, 1878 | J. Hall | Boring and Drilling Apparatus | boring heads |
| 200,316 | Feb. 12, 1878 | O. Lindblad | Improvement in cutter-heads | cutterheads |
| 200,348 | Feb. 12, 1878 | S. Schwerdt | Wrench | quick adjust wrenches |
| 200,361 | Feb. 12, 1878 | S.R. Thompson | Improvement in bark-cutting machines | bark processing machines |
