| Patents for Donn Twitchell |
Patents 1 -
10
of 25
      |
| Picture | Number | Date | Patentee | Title |
 | 251,635 | Dec. 27, 1881 | H.W. Reed | Improved Monkey Wrench |
 | 278,600 | May 29, 1883 | J. Robson | Gas Engine |
 | 287,193 | Oct. 23, 1883 | J.L. Taylor | Pipe Wrench |
 | 304,520 | Sep. 02, 1884 | G.B. Gable | Combination Tool |
 | 308,969 | Dec. 09, 1884 | J. Lussier | Wrench |
 | 336,815 | Feb. 23, 1886 | E.B. Barker, W.H. Lewis | Stand for Photographic Cameras |
 | 339,813 | Apr. 13, 1886 | P. Ryan, J. Ryan | Wrench |
 | 342,119 | May 18, 1886 | J.W. Miller | Ratchet Wrench and Drill |
 | 347,580 | Aug. 17, 1886 | J.B. Dean | Wrench |
 | 350,935 | Oct. 19, 1886 | J.G. Leslie | Wrench |
