| Patents for Gilbert H. Clemens |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
 | 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 |
 | 45,702 | Jan. 03, 1865 | G.H. Clemens | Improvement in saw-mills |
 | 49,721 | Sep. 05, 1865 | G.H. Clemens | Improvement in saw-mills |
 | 50,455 | Oct. 17, 1865 | G.H. Clemens | Improvement in sawmills |
 | 52,533 | Feb. 13, 1866 | G.H. Clemens | Improvement in head-blocks for sawmills |
 | 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 |
