| All Patents in class 408/224 |
Patents 1 -
15
of 41
      |
| Number | Date | Patentee | Title | Type |
| 4,864 | Nov. 24, 1846 | T.J. Sloan | Making Wood Screws | screw machines |
| 7,004 | Jan. 08, 1850 | L.W. Miller | Hub-boring machine | wheelwright |
| 8,267 | Jul. 29, 1851 | W.R. Jones | Machine for preparing hubs for boxes | wheelwright |
| 11,587 | Aug. 22, 1854 | B.F. Graves | Tool for boring recesses for casters, &c. | drill bits |
| 47,812 | May 23, 1865 | W.W. Grier, R.H. Boyd | Improved drill-bit | drill bits |
| 89,097 | Apr. 20, 1869 | C. Wardwell | Improvement in Augers | auger bits |
| 93,824 | Aug. 17, 1869 | W. Humphreys | Improved Compound Tool for Water and Gas Pipes | pipe reamers |
| 116,837 | Jul. 11, 1871 | D. Kelly | Improvement in boring-bits | drill bits |
| 117,082 | Jul. 18, 1871 | J.J. Kraus | Improvement in wood-boring tools | tapered reamers |
| 131,279 | Sep. 10, 1872 | P. Kavanagh | Improvement in Augers | auger bits |
| 141,511 | Aug. 05, 1873 | L. Littlejohn | Bung Reamer and Countersink | tapered reamers |
| 158,958 | Jan. 19, 1875 | W. McCrosson | Combined Drills, Countersinks and Planers | countersinks |
| 164,295 | Jun. 08, 1875 | C.J. Hardee | Improvement in lock-mortising machines | mortising machines |
| 224,921 | Feb. 24, 1880 | W. Kenworthy | Tap | taps and dies |
| 252,704 | Jan. 24, 1882 | W.H. Southwick | Combined Drill and Countersink | drill bits |
