| Patents Granted on 1871-05-23 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| RE4,388 | May 23, 1871 | L.A. Aspinwall | Corn Husker | corn huskers |
| RE4,390 | May 23, 1871 | L.R. Faught | Improvement in turning-lathes | wood lathes |
| RE4,396 | May 23, 1871 | B. Holly | Improvement in Automatic Regulating-Valves | water regulators |
| D4,922 | May 23, 1871 | H.L. Fry | Design for chain-pumps | |
| D4,924 | May 23, 1871 | J.L. Haven | Design for a housing-plate | |
| D4,937 | May 23, 1871 | S.W. Valentine | Design for a Paper Bag | handsaws |
| 115,019 | May 23, 1871 | E. Bostock | Improvement in adjustable rulers | |
| 115,029 | May 23, 1871 | D. Copeland, Jr. | Improvement in cement-pipe | |
| 115,030 | May 23, 1871 | D. Copeland, Jr. | Improvement in machines for molding drain and sewer pipes | |
| 115,084 | May 23, 1871 | E. Claringdon, S. Miller | Excavator | excavators |
| 115,103 | May 23, 1871 | J. Rand | Improvement in arbors for saws and grooving-tools | circular saws |
| 115,110 | May 23, 1871 | A.F. Scow | Improvement in machines for cutting splints | match making machines |
| 115,179 | May 23, 1871 | R.H. Dowling | Improvement in chucks for wood-lathes | wood lathe chucks |
| 115,194 | May 23, 1871 | D.S. Griffes | Improvement in devices for turning and canting logs | sawmill log handling |
| 115,210 | May 23, 1871 | H.H. Humphrey, H. Bickford | Improvement in scroll-saws | scrollsaws |
