| All Patents in class 76/5.1 |
Patents 1 -
15
of 27
      |
| Number | Date | Patentee | Title | Type |
| 45,850 | Jan. 10, 1865 | W.T. Nicholson | Improved Machine for Forging File Blanks | tool making machines |
| 261,198 | Jul. 18, 1882 | R. Barton | Dental Grinding Tool | dental apparatus |
| 278,915 | Jun. 05, 1883 | A.H. Emery | Tensile and compressive strength tester | testing machines |
| 296,254 | Apr. 01, 1884 | C. Van Haagen | Manufacture of drills | making drills and augers |
| 301,937 | Jul. 15, 1884 | T. Tripp, Jr. | Trip-hammer | trip and helve hammers |
| 383,882 | Jun. 05, 1888 | W.J. Hogan | Turning Lathe | metal lathes |
| 435,110 | Aug. 26, 1890 | G.D. Burton | Electric Forging Machine | power hammers |
| 459,931 | Sep. 22, 1891 | J. Gutberlet | Machine for Sharpening Drills | power hammers |
| 464,577 | Dec. 08, 1891 | L. Mayer | Bush-hammer sharpener | grinders |
| 605,544 | Jun. 14, 1898 | R.J. Good | Drop Hammer | drop hammers |
| 627,546 | Jun. 27, 1899 | J. Tedell | Machine for Shaping Metal by Rolls | sheet metal forming rolls |
| 654,072 | Jul. 17, 1900 | L.F. Nell | Drill Tool Shaper | metal shapers |
| 665,249 | Jan. 01, 1901 | L. Mayer | Trip-hammer ram connection | drop hammers |
| 707,584 | Aug. 26, 1902 | J.P. Dawson, D. Greenwalt | Drill Shaper | metal shapers |
| 823,480 | Jun. 12, 1906 | J.P. McLeod | Drop Hammer | drop hammers |
