| All Patents in class 81/112 |
Patents 1 -
15
of 65
      |
| Number | Date | Patentee | Title | Type |
| 24,807 | Jul. 19, 1859 | L.S. Hoyt, B.B. Beers | Wimble or Bit-Stock Wrench | brace wrenches |
| 88,836 | Apr. 13, 1869 | J.S. Birch | Improvement in Self-Adjusting Watch-Keys | self-adjust wrenches |
| 102,753 | May 10, 1870 | J.S. Birch | Improvement in Adjustable Watch-Keys | |
| 110,789 | Jan. 03, 1871 | J.F. Robertson | Wrench | wrench jaw components |
| 136,907 | Mar. 18, 1873 | S.B. Dexter | Combined Adjustable Pincers and Grappling Tongs | pliers |
| 145,710 | Dec. 16, 1873 | S.J. Wright | Brace-wrench | combination tools |
| 181,699 | Aug. 29, 1876 | T. McDonough | Improvement in Wrenches | quick adjust wrenches |
| 183,901 | Oct. 31, 1876 | G.H. Buzzell | Wrench | basin wrenches |
| 203,581 | May 14, 1878 | J.S. Birch | Wrench | quick adjust wrenches |
| 205,400 | Jun. 25, 1878 | C.M. Knowles | Bit-stock | brace chucks |
| 228,860 | Jun. 15, 1880 | J.S. Birch | Holding-Tool | self-adjust wrenches |
| RE9,310 | Jul. 20, 1880 | J.S. Birch | Improvement in an Adjustable Holding Device and Watch-Key | self-adjust wrenches |
| 244,685 | Jul. 19, 1881 | J.H. Strickler | Wrench | screw adjust wrenches |
| 282,605 | Aug. 07, 1883 | J.S. Birch | Watch Key and Holding Tool | socket wrenches |
| 282,606 | Aug. 07, 1883 | J.S. Birch | Watch Key | self-adjust wrenches |
