| Patents Granted on 1880-04-20 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| RE9,164 | Apr. 20, 1880 | J.E. Lonergan | Lubricator | oil cups |
| RE9,167 | Apr. 20, 1880 | A.P. Hazard | Shoe-makers' edge-plane | cobbler |
| 226,590 | Apr. 20, 1880 | J. Augspurger | Drag-saw | drag saws |
| 226,612 | Apr. 20, 1880 | M. Herzberg | Metal Stamping, Punching and Shearing Machine | stamping presses |
| 226,617 | Apr. 20, 1880 | J.L. Koenig | Cabinet-Maker's Clamp | clamps |
| 226,622 | Apr. 20, 1880 | D.W. Moody | Tracing Wheel | |
| 226,643 | Apr. 20, 1880 | T.R. Way | Tap Wrench | tap wrenches and die stocks |
| 226,646 | Apr. 20, 1880 | C.H. Amidon | Bit-brace | braces |
| 226,709 | Apr. 20, 1880 | C. Brunner | Combined Anvil, Vise and Drill | anvil vises |
| 226,718 | Apr. 20, 1880 | J.A. Cluxton | Drag-saw | drag saws |
| 226,723 | Apr. 20, 1880 | F.C. Davidson | Clinometer | clinometers |
| 226,756 | Apr. 20, 1880 | R.R. Jones | Pliers | pliers |
| 226,774 | Apr. 20, 1880 | E. Nunan | Chain saw | tree felling machines |
| 226,791 | Apr. 20, 1880 | J.B. Rickard | Sawing-machine | drag saws |
