| Patents Granted on 1871-04-11 |
Patents 1 -
15
of 25
      |
| Number | Date | Patentee | Title | Type |
| CA-917 | Apr. 11, 1871 | T. Beaudry | Joint for joining the ends of machine belts | industrial machine mechanisms |
| CA-919 | Apr. 11, 1871 | A. Ross, M.H. Utley | Improvements on electro-magnetic motors | electric motors |
| RE4,329 | Apr. 11, 1871 | J.T. Case | Water Wheel | water wheels |
| RE4,330 | Apr. 11, 1871 | J.T. Case | Water Wheel | water wheels |
| RE4,333 | Apr. 11, 1871 | W.W. Draper | Improvement in tool-holders | tool handles |
| RE4,337 | Apr. 11, 1871 | J.S. Patric | Improvement in air-compressing apparatus | air compressors |
| 113,487 | Apr. 11, 1871 | H.E. Bradt | Improvement in edging-machines | woodworking machine stockfeeding mechanisms |
| 113,495 | Apr. 11, 1871 | G.M. Baker, E.H. Carver | Corn Husker | corn huskers |
| 113,516 | Apr. 11, 1871 | B. Holly | Water Filter | water filters |
| 113,517 | Apr. 11, 1871 | B. Holly | Safety Valve | steam safety valves |
| 113,531 | Apr. 11, 1871 | P.F. King, E.A. King | Improvement in sawing-machines | tablesaws |
| 113,554 | Apr. 11, 1871 | M. Newlove | Imrpovement in Weather-Board Gages | clapboard markers |
| 113,560 | Apr. 11, 1871 | D. Pomeroy | Improvement in dovetailing-machines | dovetailing machines |
| 113,565 | Apr. 11, 1871 | A. Rewrick | Improvement in machines for sawing staves | barrel making machines |
| 113,585 | Apr. 11, 1871 | T. Silver | Improvement in hoisting apparatus | hoists, winches, come-alongs |
