| All Patents in class 408/122.5 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 114,545 | May 09, 1871 | W. Frankel | Improvement in ratchet-drills | hand drills |
| 116,955 | Jul. 11, 1871 | I.S. Hamilton | Improvement in ratchet-drills | hand drills |
| 197,896 | Dec. 04, 1877 | W.H. Richards | Improvement in ratchet-drills | ratchet drills |
| 231,361 | Aug. 17, 1880 | W.H. Richards | Ratchet Drill | ratchet drills |
| 264,107 | Sep. 12, 1882 | W. Sandiford | Ratchet-drill | hand drills |
| 267,462 | Nov. 14, 1882 | W. Sandiford | Ratchet-drill | hand drills |
| 314,449 | Mar. 24, 1885 | J.C. Imlay | Ratchet Drill | ratchet drills |
| 507,968 | Oct. 31, 1893 | C.T. Burr | Ratchet-drill | hand drills |
| 514,127 | Feb. 06, 1894 | J. Meahl | Double-acting ratchet drill | |
| 547,053 | Oct. 01, 1895 | C.A. Williams | Ratchet-drill (engineer's) | |
| 611,253 | Sep. 27, 1898 | J. Houlehan | Ratchet Drill | |
| 613,950 | Nov. 08, 1898 | E.C. Lewis, H.G. Hoadley, H.D. Williams | Lever and Ratch Attachment | ratchet wrenches |
| 1,091,791 | Mar. 31, 1914 | J.T. Barber | Ratchet Tool Holder | ratchet drills |
