| Patents Granted on 1866-07-31 | 
| Patents 1 - 
					13
					of 13 
       | 
| Number | Date | Patentee | Title | Type | 
| 56,719 | Jul. 31, 1866 | J.W. Pugh, G.E. Corbin | Turbine Water Wheel | turbine water wheels | 
| 56,731 | Jul. 31, 1866 | J.F. Dodge | Improvement in Wrenches | wrench jaw components | 
| 56,734 | Jul. 31, 1866 | A.A. Dunk | Improved Mode of Repairing Files | files | 
| 56,736 | Jul. 31, 1866 | W.A. Ellis | Improvement in machines for forming plow-handles | specialty woodworking machines | 
| 56,788 | Jul. 31, 1866 | J. Newman | Improvement in wood-bending machines | wood bending machines | 
| 56,820 | Jul. 31, 1866 | J.B. Stark | Improvement in mortising-machines | mortising machines | 
| 56,825 | Jul. 31, 1866 | A.C. Stone | Machine for Rolling Metal | rolling mills | 
| 56,835 | Jul. 31, 1866 | J. Tucker | Water Wheel | water wheels | 
| 56,838 | Jul. 31, 1866 | W.G. Ward | Hammer | nail holding | 
| 56,840 | Jul. 31, 1866 | J. Wolfenden | Rest Holder for Turning Lathes | metal lathe accessories and attachments | 
| 56,848 | Jul. 31, 1866 | J.D. Chase, J. Chase, D. Chase | Water Wheel | turbine water wheels | 
| 56,861 | Jul. 31, 1866 | P. Plant | Coffee Roaster | coffee roasters | 
| 56,869 | Jul. 31, 1866 | R. Jennings | Improvements in Machinery for Swaging the Heads of Screw Augers | tool making machines |