| Patents Granted on 1851-07-__ |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 8,185 | Jul. 01, 1851 | W. Hinds | Vise Saw Set | saw vises |
| 8,196 | Jul. 01, 1851 | T.R. Bailey | Self-centering lathe | wood lathes |
| 8,199 | Jul. 01, 1851 | J. Crum | Machinery for Cutting Files | tool making machines |
| XC-332 | Jul. 04, 1851 | G. Hawley | Shingle making machine | shingle machines |
| 8,203 | Jul. 08, 1851 | R. Dudgeon | Portable hydraulic press | hydraulic jacks |
| 8,206 | Jul. 08, 1851 | J.W. Wheeler, B. Holly | Machine for grooving lumber | dado machines |
| NS-13 | Jul. 12, 1851 | A. Chisholm | Mathematical mechanical scale to solve problems in trigonometry | scales |
| NS-14 | Jul. 12, 1851 | A. Chisholm | Improved spirit level | spirit levels |
| 8,216 | Jul. 15, 1851 | J.M. Bottum | Mode of Securing Pinions and Staffs of Watches in Lathe or Bench Chucks | watchmakers lathes |
| 8,217 | Jul. 15, 1851 | E.K. Browning | Machine for cutting wood into shreds and crimping them for mattress stuffing, &c. | excelsior machines |
| 8,230 | Jul. 15, 1851 | D. Woodcock | Machine for sawing and dressing staves | barrel making machines |
| 8,245 | Jul. 22, 1851 | W. Hawkins | Stave-dressing machine | barrel making machines |
| 8,246 | Jul. 22, 1851 | J. Burgess | Machine for dressing boot-forms | specialty woodworking machines |
| RE205 | Jul. 29, 1851 | P. Stillman | Improvement in Steam and Vacuum Gages | vacuum and pressure gauges |
| 8,265 | Jul. 29, 1851 | H. Moore | Machine for preparing hubs for the reception of boxes | wheelwright |
