| Patents Granted on 1880-04-13 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| RE9,146 | Apr. 13, 1880 | R. Eickemeyer | Fulling-mill | |
| 226,381 | Apr. 13, 1880 | G.W. Amesbury | Cutter head | cutterheads |
| 226,402 | Apr. 13, 1880 | I.W. Heysinger | Device for Filing and Binding Papers | staplers |
| 226,410 | Apr. 13, 1880 | F.I. Maule | Pipe-Vise for Bench-Vises | pipe and chain vises |
| 226,429 | Apr. 13, 1880 | W.H. Varnum | Shoe Maker's Measuring Stick | cobbler |
| 226,431 | Apr. 13, 1880 | J.F. Warner | Mechanic's Horse | workbenches |
| 226,477 | Apr. 13, 1880 | M.A. Bidwell | Shingle-machine | shingle machines |
| 226,490 | Apr. 13, 1880 | J.W. Calef | Wrench | self-adjust wrenches |
| 226,533 | Apr. 13, 1880 | A.J. Merritt | Drag-sawing machine | drag saws |
| 226,537 | Apr. 13, 1880 | J. Murray, F.W. Holt | Lath bolter | lath making machines |
| 226,549 | Apr. 13, 1880 | G.W. Prentice | Instrument For Setting Buttons | pliers |
| 226,569 | Apr. 13, 1880 | A.F. Temple | Machine for making fire-kindlers | firewood machines |
| 226,582 | Apr. 13, 1880 | E. Miller | Wrench | wrenches |
