| Patents Granted on 1864-05-03 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 42,560 | May 03, 1864 | J.C. Chapman | Ratchet Drill | ratchet drills |
| 42,581 | May 03, 1864 | B. Hotchkiss | Power Hammer | trip and helve hammers |
| 42,582 | May 03, 1864 | D. Howell, Jr., M.K. Kellam | Improvement in miter-boxes | miter boxes |
| 42,585 | May 03, 1864 | W.S. Loughborough | Improvement in Grooving or Panel Plows | plane fences |
| 42,592 | May 03, 1864 | S.A. Morse | Improved collet | drill chucks |
| 42,593 | May 03, 1864 | L.H. Olmsted | Improvement in oil-cans | oil cans |
| 42,597 | May 03, 1864 | M. Reed | Improvement in machines for crimping barrel-hoops | hoop making machines |
| 42,616 | May 03, 1864 | W. Wright | Improved machine for boring curved cylinders | drilling and boring |
