| All Patents in class 81/168 |
Patents 1 -
10
of 25
      |
| Picture | Number | Date | Patentee | Title |
 | 1,301 | Aug. 24, 1839 | H.W. Hewet | Improved Screw-Wrench |
 | 6,210 | Mar. 20, 1849 | D.H. Chamberlain | Sliding Wrench |
 | 62,630 | Mar. 05, 1867 | S.B. Hill | Nut Wrench |
 | 118,619 | Aug. 29, 1871 | J.W. Mahlon | Improvement in Wrenches |
 | 149,944 | Apr. 21, 1874 | W.W. Micks | Pipe-Wrenches and Cutters |
 | 204,089 | May 21, 1878 | G.W. Remington | Adjustable Carriage-Wrench |
 | 230,634 | Aug. 03, 1880 | H.P. Huntoon | Pipe Tongs |
 | 263,471 | Aug. 29, 1882 | W.A. Bradford | Wrench |
 | 355,641 | Jan. 04, 1887 | E.E. Scates, C.D. Cutts | Wrench |
 | 357,869 | Feb. 15, 1887 | A.K. Spaulding, A.M. Spaulding | Nut Wrench |
