| Patents for Wendell R. Curtis |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 146,539 | Jan. 20, 1874 | E.J. Manville | Reversing Gearings for Metal-Planers | metal planers |
| 151,627 | Jun. 02, 1874 | A. Schmitter | Surface Gage | surface gauges |
| 153,885 | Aug. 11, 1874 | C.E. Billings | Improvements in Dies For Forging Lathe-Dogs | tool making machines |
| 156,640 | Nov. 10, 1874 | W.R. Landfear, N.E. Campbell | Improvement in lathes for turning spools | spool or bobbin machines |
| 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 | tap wrenches and die stocks |
| 168,412 | Oct. 05, 1875 | F.A. Pratt | Improvement in cranes | cranes |
| 170,949 | Dec. 14, 1875 | J.J. Grant | Improvement in screw-cutting die holders | tap wrenches and die stocks |
| 172,854 | Feb. 01, 1876 | J.J. Grant | Improvement in Tap-Wrenches | tap wrenches and die stocks |
| 173,780 | Feb. 22, 1876 | J.J. Grant | Improvement in screw-cutting dies | taps and dies |
| 173,802 | Feb. 22, 1876 | T. McDonough | Improvement in Calipers and Dividers | calipers |
| 183,761 | Oct. 31, 1876 | H. Hammond | Dies For Forming Machinists' Hammers | hammers |
| D11,425 | Sep. 23, 1879 | H. Hammond | Design for Hatchets | axes |
| 224,119 | Feb. 03, 1880 | D.E. Whiton | Scroll-chuck | metal lathe chucks |
