| Patents for Theodore G. Ellis |
Patents 1 -
10
of 35
      |
| Picture | Number | Date | Patentee | Title |
 | 126,160 | Apr. 30, 1872 | D. Slate | Improvement in tool for grinding lathe-centers |
 | 150,253 | Apr. 28, 1874 | E.G. Parkhurst | Profiling-Machines |
 | 151,627 | Jun. 02, 1874 | A. Schmitter | Surface Gage |
 | 156,640 | Nov. 10, 1874 | W.R. Landfear, N.E. Campbell | Improvement in lathes for turning spools |
 | 164,391 | Jun. 15, 1875 | F.A. Pratt | Improvement in metal-shearing machines |
 | 164,392 | Jun. 15, 1875 | F.A. Pratt | Improvement in drop-hammers |
 | 167,165 | Aug. 31, 1875 | J.J. Grant | Improvement in die-stocks |
 | 168,412 | Oct. 05, 1875 | F.A. Pratt | Improvement in cranes |
 | 170,949 | Dec. 14, 1875 | J.J. Grant | Improvement in screw-cutting die holders |
 | 172,664 | Jan. 25, 1876 | D. Slate | Tool Holder for Metal Turning Lathes |
