| Patents for Alexander Lesperance |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 463,812 | Nov. 24, 1891 | A. Lesperance | Clutch | metalworking power transmission |
| 463,820 | Nov. 24, 1891 | T.H. Worrall, A. Lesperance | Clutch | metalworking power transmission |
| 559,558 | May 05, 1896 | T.H. Worrall, A. Lesperance | Friction-clutch | metalworking power transmission |
| 586,263 | Jul. 13, 1897 | T.H. Worrall, A. Lesperance | Power-shifting device for clutch mechanisms | metalworking power transmission |
| 606,634 | Jun. 28, 1898 | T.H. Worrall, A. Lesperance | Friction-clutch | metalworking power transmission |
