| All Patents in class 81/93 |
Patents 1 -
10
of 23
      |
| Picture | Number | Date | Patentee | Title |
 | 94,085 | Aug. 24, 1869 | A.B. Davis | Improvement in Duplex Wrench |
 | 106,129 | Aug. 09, 1870 | A.B. Davis | Nut-Wrench |
 | 106,467 | Aug. 16, 1870 | S. Chapman | Wrench |
 | 120,947 | Nov. 14, 1871 | A.B. Davis | Improvement in Duplex Wrenches |
 | 145,085 | Dec. 02, 1873 | W.C. Bemis | Wrenches |
 | 160,946 | Mar. 16, 1875 | H. Otto | Pipe-Wrench |
 | 220,076 | Sep. 30, 1879 | A. Jackson | Improved Universal Wrench |
 | 232,937 | Oct. 05, 1880 | G.A. Chapman | Pipe Cutter and Wrench |
 | 286,561 | Oct. 09, 1883 | H.M. Vincent, W.N. Smith | Wrench |
 | 317,923 | May 12, 1885 | A. Call | Wrench |
