| Patents Granted on 1871-05-30 |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| RE4,409 | May 30, 1871 | S.R. Smith | Improvement in circular-saw mills | circular sawmills |
| D4,945 | May 30, 1871 | H.L. Fry | Design for a chain-pump | |
| 115,275 | May 30, 1871 | H.V. Brown | Improvement in Vises | anvil vises |
| 115,280 | May 30, 1871 | J.H. Clapham | Improvements in Traction Engines | steam traction engines |
| 115,290 | May 30, 1871 | L.R. Faught | Improvement in hold-fasts for lathe-spindles | wood lathes |
| 115,291 | May 30, 1871 | L.R. Faught | Improvement in die-stocks for cutting screws | taps and dies |
| 115,302 | May 30, 1871 | J. Galloway | Improvement in Coffee Roasters | coffee roasters |
| 115,318 | May 30, 1871 | E.A. Hickman | Improvement in Apparatus for Illustrating Trigonometry | protractors |
| 115,324 | May 30, 1871 | W. Kerr, Jr. | Improvement in Chucks for Watchmakers' Lathes | metal lathe chucks |
| 115,337 | May 30, 1871 | E. McNiel | Improvement in Centering Machine | wood lathe accessories |
| 115,368 | May 30, 1871 | D.W. Simmons | Wheeled Marking Gage | marking gauges |
| 115,401 | May 30, 1871 | S. Whitesides | Improvement in planing-machines | wood planers |
| 115,414 | May 30, 1871 | J. Barker | Improvement in Sand Papering Machines | sanding machines |
| 115,424 | May 30, 1871 | A.J. Bower | Improvement in Lathes for Turning Axles | wood lathes |
| 115,438 | May 30, 1871 | W.F. Cornell | Surface Gage | surface gages |
