| All Patents in class 81/55 |
Patents 1 -
15
of 26
      |
| Number | Date | Patentee | Title | Type |
| 133,325 | Nov. 26, 1872 | E. Maguire | Combined Railroad-Track Wrench and Lever | socket wrenches |
| 165,319 | Jul. 06, 1875 | J.R. Finley | Improvement in Fish-Plate Nut Wrenches | ratchet wrenches |
| 269,482 | Dec. 19, 1882 | L.H. Swan | Wrench | ratchet wrenches |
| 336,908 | Mar. 02, 1886 | A.J. Forbes | Railroad Nut Wrench | ratchet wrenches |
| 348,182 | Aug. 31, 1886 | C.H. Amidon | Machine for applying heads to bit braces | |
| 415,114 | Nov. 12, 1889 | J.M. Martin | Implement for Removing Nuts from the Ends of Bolts Located on the Insides of Stoves and in Other Places Difficult of Access | ratchet wrenches |
| 465,063 | Dec. 15, 1891 | W. Lehman | Tire-Bolt Holder and Wrench | tire bolt wrenches |
| 466,329 | Jan. 05, 1892 | W.F. Custer | Bolt Holder and Wrench | tire bolt wrenches |
| 536,012 | Mar. 19, 1895 | F.P. Bruneau | Nut and Screw Tightening Machine | socket wrenches |
| 569,372 | Oct. 13, 1896 | E. Cunningham | Wrench | ratchet wrenches |
| 609,324 | Aug. 16, 1898 | J.H. Atkinson | Wrench | ratchet wrenches |
| 613,969 | Nov. 08, 1898 | J.M. Certain | Railroad Nut Wrench | ratchet wrenches |
| 626,446 | Jun. 06, 1899 | T.E. Stockford | Tire Bolt Wrench | tire bolt wrenches |
| 1,164,815 | Dec. 21, 1915 | S.A. Hunter | Wrench | socket wrenches |
| 1,294,857 | Feb. 18, 1919 | C.F. Yuncker | Attachment For Wrenches | brace wrenches |
