| Patents Granted on 1869-04-06 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 88,535 | Apr. 06, 1869 | A.P. Barlow | Reciprocating mechanism for sawmill | sawmills |
| 88,559 | Apr. 06, 1869 | R.E. Hayden, W. Evans | Improvement in Molds for Casting Augers | making drills and augers |
| 88,560 | Apr. 06, 1869 | O.V. Flora | Wrench | screw adjust wrenches |
| 88,579 | Apr. 06, 1869 | D. Murphy | Improvement in hub-boring machine | drilling and boring |
| 88,585 | Apr. 06, 1869 | G.H. Porter | Improved Process of hardening Steel | |
| 88,612 | Apr. 06, 1869 | L.B. Crittenden | Coffee Roaster | coffee roasters |
| 88,620 | Apr. 06, 1869 | A. Friedman | Steam Pump | steam pumps |
| 88,621 | Apr. 06, 1869 | E. Froggatt | Improvement in Wrench and Pincers | combination tools |
| 88,623 | Apr. 06, 1869 | G.P. Ganster | Improvement in Wrench | screw adjust wrenches |
| 88,649 | Apr. 06, 1869 | J.B. Machamer | Improvement in index for filing circular saws | sawblades |
| 88,679 | Apr. 06, 1869 | H.K. Trask | Improvement in Device for Grinding Edged Tools | tool grinders |
| 88,708 | Apr. 06, 1869 | H.L. Hall | Corn Husker | corn huskers |
| 88,725 | Apr. 06, 1869 | C. Marsh | Improved Mode of Finishing and Truing Emery Wheels, &c. | wheel truing devices |
| 88,760 | Apr. 06, 1869 | C. Whitehouse | Improvement in bits and augers | drill bits |
