| Patents for J. I. Depew Disc Sharpener Co. |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 780,552 | Jan. 24, 1905 | J.I. Depew | Tire-Upsetter | tire upsetters |
| 806,244 | Dec. 05, 1905 | J.I. Depew | Disk-Sharpener | sharpeners |
| 878,048 | Feb. 04, 1908 | J.I. Depew | Shearing and Punching Mechanism | metal punching machines |
| 979,831 | Dec. 27, 1910 | J.I. Depew | Disk-Sharpener | sharpeners |
| 1,076,554 | Oct. 21, 1913 | J.I. Depew | Power Hammer | drop hammers |
| CA-153,791 | Feb. 17, 1914 | J.I. Depew | Power Hammer | drop hammers |
| 1,485,486 | Mar. 04, 1924 | J.I. Depew | Power Hammer | drop hammers |
| 1,668,633 | May 08, 1928 | J.I. Depew | Plowshare and Cultivator Shovel Straightener | shovels |
