| Patents for Luke Chapman |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 82,085 | Sep. 15, 1868 | L. Chapman | Improvement in Wrenches | nut wrenches |
| 90,726 | Jun. 01, 1869 | L. Chapman | Improved machine for forming bits for axes | tool making machines |
| 94,710 | Sep. 14, 1869 | L. Chapman | Wrench | wrench jaw components |
| 99,059 | Jan. 25, 1870 | L. Chapman | Improved Milling-Machine | wood shapers |
| 100,978 | Mar. 22, 1870 | L. Chapman | Wrench | wrench jaw components |
| 121,083 | Nov. 21, 1871 | L. Chapman | Improvement in Wrenches | nut wrenches |
| 123,554 | Feb. 13, 1872 | L. Chapman | Improvment in the Manufacture of Wrench-Heads | tool making machines |
| 135,406 | Feb. 04, 1873 | L. Chapman | Improvement in Dies for Making Wrench-Heads | tool making machines |
| RE5,294 | Feb. 25, 1873 | L. Jordan, L.E. Smith | Wrenches | wrench handle components |
| 137,052 | Mar. 25, 1873 | L. Chapman | Improvement in Dies for Forming Wrench-Heads | tool making machines |
| 137,053 | Mar. 25, 1873 | L. Chapman | Improvements in the Manufacture of Wrench-Heads | wrench jaw components |
| 149,277 | Mar. 31, 1874 | L. Chapman | Drop-Hammers | drop hammers |
| 172,246 | Jan. 18, 1876 | L. Chapman | Metal Hammering-Machine | power hammers |
| 183,797 | Oct. 31, 1876 | L. Chapman | Machines for Punching and Swaging Metal | metal punching machines |
| 225,745 | Mar. 23, 1880 | L. Chapman | Dies For Forming Wrench-Heads | wrench jaw components |
