| Patents Granted on 1880-05-25 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| RE9,217 | May 25, 1880 | J.S. Everitt, C.H. Avery | Head-block for saw-mills | sawmill headblocks |
| 227,892 | May 25, 1880 | L. Glynn | Improvements in Pipe and Nut Wrenches | screw adjust wrenches |
| 227,906 | May 25, 1880 | C. Levey | Furnace | industrial furnaces |
| 227,926 | May 25, 1880 | J.A. Robb | Lumber edger | circular ripsaws |
| 227,955 | May 25, 1880 | W.P. Campbell | Shingle-cutting machine | shingle machines |
| 227,962 | May 25, 1880 | S. Darling | Dividing Engine | |
| 227,980 | May 25, 1880 | H. Kline | Shaft-coupling | industrial machine shaft couplings |
| 228,027 | May 25, 1880 | D. Bissell | Bevel Square | bevels |
| 228,046 | May 25, 1880 | W.H. Doane | Sectional shaft for woodworking machines | woodworking machine mechanisms |
| 228,067 | May 25, 1880 | M. Hasse | Drop-Hammer | drop hammers |
| 228,076 | May 25, 1880 | E.N. Jenkins | Coffee Roaster | coffee roasters |
