| Patents for J. W. Coombs |
Patents 16 -
30
of 88
      |
| Number | Date | Patentee | Title | Type |
| 29,623 | Aug. 14, 1860 | W. Russell | Wrench and Vise | nut wrenches |
| 29,673 | Aug. 21, 1860 | G. Danforth | Corn Sheller | corn shellers |
| 31,340 | Feb. 05, 1861 | C. Tribby | Watchmakers Lathe | watchmakers lathes |
| 31,595 | Mar. 05, 1861 | J. Griffin | Mode of Regulating the Speed of Vehicles Moved by Mechanical Power | steam carriages |
| 33,138 | Aug. 27, 1861 | J.C. Gibbs | Implement or Device for Scraping About the Seams, &c. of Vessels | shipwright |
| 35,176 | May 06, 1862 | A.K. Rider | Cut-Off Valve | steam engine valves |
| 35,762 | Jul. 01, 1862 | W. Kearney, F. Kearney | Improvement in Pipe-Tongs or Wrenches | pipe tongs |
| 35,885 | Jul. 15, 1862 | J.M. Hanscom, G.H. Mills | Improvement in Hammers | nail holding |
| 36,885 | Nov. 11, 1862 | W.D. Andrews | Oscillating Steam Engine | oscillating steam engines |
| 36,903 | Nov. 11, 1862 | W.S. Hadley | Tapping Guide | tool holders |
| 36,906 | Nov. 11, 1862 | T.N. Hosmer | Improvement in Spirit-Levels | level adjustments |
| 36,942 | Nov. 18, 1862 | E.J. Chapin | Watchmakers Lathe | watchmakers lathes |
| 36,977 | Nov. 18, 1862 | T.W. Wisner | Improvement in Trying Squares | try squares |
| 37,459 | Jan. 20, 1863 | N. Porter | Improvement in Wrenches | quick adjust wrenches |
| 37,694 | Feb. 17, 1863 | S.C. Howes | Improvement in Bench-Planes | plane cutter adjustments |
