| Patents for Amos W. Hart |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 204,809 | Jun. 11, 1878 | D. Gates | Improvement in drag-sawing machines | drag saws |
| 205,867 | Jul. 09, 1878 | J.F. Swinnerton, J.C. Titus, E. Huber | Portable Engine | portable steam engines |
| 514,308 | Feb. 06, 1894 | R.L. Davis | Combination Tool | combination tools |
| 597,611 | Jan. 18, 1898 | F.M. Humphrey, J.S. Haye | Wrench | pipe and nut combination wrenches |
| 603,972 | May 10, 1898 | J. Schaub | Photographic Plate Holder | film and plate holders |
| 624,875 | May 09, 1899 | W.D. Arnott, B.E. Sawyer | replaceable screwdriver blade | screwdriver blades |
| 624,876 | May 09, 1899 | B.E. Sawyer | Surface Gage | surface gauges |
| 661,902 | Nov. 13, 1900 | G. Bartlett | Saw Filing Machine | saw sharpening tools |
| 729,374 | May 26, 1903 | J.T. Marsh | Sawing-machine | tablesaws |
| CA-83,712 | Nov. 03, 1903 | J.T. Marsh | Sawing-machine | tablesaws |
| 894,641 | Jul. 28, 1908 | A.J. Higbee | Ratchet Wrench | ratchet wrenches |
| 1,053,931 | Feb. 18, 1913 | G.F. Lebus, W.R. Osborne | Well Drill Wrench | pipe tongs |
| 1,157,495 | Oct. 19, 1915 | W.L. Bessolo | Nut Wrench | nut wrenches |
| 1,158,164 | Oct. 26, 1915 | W.L. Bessolo | Wrench | quick adjust wrenches |
