| All Patents in class 81/177.1 |
Patents 16 -
30
of 195
      |
| Number | Date | Patentee | Title | Type |
| 118,619 | Aug. 29, 1871 | J.W. Mahlon | Improvement in Wrenches | wrenches |
| 132,789 | Nov. 05, 1872 | Q.S. Backus | Improvement in wrenches | quick adjust wrenches |
| 141,289 | Jul. 29, 1873 | A. Partridge | Improvement in Screw-Wrenches | nut wrenches |
| 172,155 | Jan. 11, 1876 | O.B. North | Wrench | quick adjust wrenches |
| 198,777 | Jan. 01, 1878 | W.T. Nicholson | File Handle | tool handles |
| 202,259 | Apr. 09, 1878 | C.W. Hilton | Wrench | wrenches |
| 212,298 | Feb. 18, 1879 | C.E. Billings | Wrench | screw adjust wrenches |
| 219,808 | Sep. 23, 1879 | J. Edgecomb | Improvement in Auger-Handles | auger handles |
| 223,146 | Dec. 30, 1879 | R.E. Kidder | Tool-Handle | tool handles |
| 225,135 | Mar. 02, 1880 | H.P. Hood | Wrench | screw adjust wrenches |
| 228,755 | Jun. 15, 1880 | R. Hayden | Monkey Wrench | nut wrenches |
| 236,692 | Jan. 18, 1881 | S.B. Peakman | Screw-Driver | screwdrivers |
| 283,675 | Aug. 21, 1883 | W.J. Sherman | Wrench | pipe wrenches |
| 287,809 | Nov. 06, 1883 | W. Devereux | Screw-Driver | screwdriver mechanisms |
| 289,056 | Nov. 27, 1883 | R.C. Ellrich, G.S. Allen | Screwdriver | screwdriver handles |
