| Patents Granted on 1849-04-17 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 6,324 | Apr. 17, 1849 | G. McKay | Piston-valve cut-off | steam check valves |
| 6,325 | Apr. 17, 1849 | E. Brown, A.M. George | Revolving-die spike machine | |
| 6,326 | Apr. 17, 1849 | E.B. Cherevoy | Machinery for cutting veneers, &c. | veneer machines |
| 6,332 | Apr. 17, 1849 | J. Essex | Machine for Marking Carpenters' Squares | making rules |
| 6,339 | Apr. 17, 1849 | J.S. Barden, J. Sheldon | Planing-machine | wood planers |
| 6,343 | Apr. 17, 1849 | H.B. Smith | Mortiser for window-blind stiles | mortising machines |
| 6,345 | Apr. 17, 1849 | T.R. Wood | Coffee Roaster | coffee roasters |
| 6,350 | Apr. 17, 1849 | J.J. Weeks | Chain mortising machine | mortising machines |
| 6,352 | Apr. 17, 1849 | G. Gilbert | Machinery for dressing staves | cooper |
| 6,359 | Apr. 17, 1849 | J. Tremper | Piston-ring and method of deriving motion therefrom in rotary engines | rotary steam engines |
| 6,365 | Apr. 17, 1849 | E.G. Allen | Planing-machine | wood planers |
| 6,370 | Apr. 17, 1849 | H. Knowles | Cutter for tonguing and grooving | cutters |
