| Patents for Gilbert H. Clemens |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 25,703 | Oct. 04, 1859 | J.C. Miller, S.A. Clemens, G.H. Clemens | Improvement in lining underground drains | |
| 29,058 | Jul. 10, 1860 | G.H. Clemens | Sawmill | circular sawmills |
| 45,702 | Jan. 03, 1865 | G.H. Clemens | Improvement in saw-mills | sawmill carriages |
| 49,721 | Sep. 05, 1865 | G.H. Clemens | Improvement in saw-mills | sawmill headblocks |
| 50,455 | Oct. 17, 1865 | G.H. Clemens | Improvement in sawmills | sawmill accessories |
| 52,533 | Feb. 13, 1866 | G.H. Clemens | Improvement in head-blocks for sawmills | sawmill headblocks |
| 58,987 | Oct. 23, 1866 | G.H. Clemens, D.G. Coppin | Improvement in safety valves | |
| 62,476 | Feb. 26, 1867 | G.H. Clemens, D.G. Coppin | Improvement in lock-up safety-valves | |
| 62,477 | Feb. 26, 1867 | G.H. Clemens, D.G. Coppin | Improvement in lock-up safety-valves | |
| 63,614 | Apr. 09, 1867 | G.H. Clemens | Improvement in head-blocks for sawmills | sawmill headblocks |
| 81,878 | Sep. 08, 1868 | G.H. Clemens, E. Clemens | Improvement in steam safety-valves | steam safety valves |
| 85,792 | Jan. 12, 1869 | G.H. Clemens | Improvement in steam safety-valves | steam safety valves |
