| Patents Granted on 1880-03-30 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| RE9,130 | Mar. 30, 1880 | J.H. Smith | Hollow auger | hollow bits |
| RE9,131 | Mar. 30, 1880 | J.H. Smith | Hollow auger | hollow bits |
| 225,912 | Mar. 30, 1880 | G.W. Baker | Device for Oiling Steam-Valves | steam engine lubricators |
| 225,921 | Mar. 30, 1880 | J. Davies, F.B. Chidester | Lathe | wood lathes |
| 225,928 | Mar. 30, 1880 | W.H. Hankin, Jr. | Buck-saw frame | frame saws |
| 225,950 | Mar. 30, 1880 | A. Schiffling | Surface Gage | surface gauges |
| 225,963 | Mar. 30, 1880 | C.H. Bacon | Water-meter | water meters |
| 226,039 | Mar. 30, 1880 | E. Covert | Thill-Adjuster | auxiliary wrenches |
| 226,052 | Mar. 30, 1880 | J. Ericsson | Air-Engine | hot air engines |
| 226,064 | Mar. 30, 1880 | C. Hagerty | Drag-sawing machine | drag saws |
| 226,066 | Mar. 30, 1880 | G. Hart | Emery-wheel | grinding wheels |
| 226,130 | Mar. 30, 1880 | D.F. Sutton | Combination scroll saw, drill, lathe | scrollsaws |
