| Patents Granted on 1891-06-23 |
Patents 1 -
15
of 20
      |
| Number | Date | Patentee | Title | Type |
| D20,852 | Jun. 23, 1891 | W. Kendall | Claw Hammer | hammers |
| 454,462 | Jun. 23, 1891 | R. Eickemeyer | Electric elevator | |
| 454,481 | Jun. 23, 1891 | C. Kennedy | Stone Planing Machine | stone dressing machines |
| 454,516 | Jun. 23, 1891 | H.E. Brown | Micrometer Gage | micrometers |
| 454,542 | Jun. 23, 1891 | W.A. Bernard | Vise | bench vises |
| 454,569 | Jun. 23, 1891 | J.H. Dyson | Calipers | calipers |
| 454,612 | Jun. 23, 1891 | B. Donahue | Wrench | wrench jaw components |
| 454,622 | Jun. 23, 1891 | N. Tesla | System of electric lighting | |
| 454,642 | Jun. 23, 1891 | W.F. Folmer | Pocket Lamp | lamps |
| 454,678 | Jun. 23, 1891 | M. Cummins | Wrench | quick adjust wrenches |
| 454,684 | Jun. 23, 1891 | J.M. Parker | Spool lathe | spool or bobbin machines |
| 454,693 | Jun. 23, 1891 | C. Wies | Vise | bench vises |
| 454,730 | Jun. 23, 1891 | R.S. Greenlee, E.G. Strom | Forming and sanding door panels | sanding machines |
| 454,738 | Jun. 23, 1891 | E.F. Holmgreen | Rotary Engine | rotary steam engines |
| 454,764 | Jun. 23, 1891 | J. Pleukharp | Machine for forming and hooping barrels | cooper |
