| Patents for Frank A. Shoemaker |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 371,480 | Oct. 11, 1887 | F.A. Shoemaker | Belt-shifter | industrial machine pulleys and belt drive mechanisms |
| 384,795 | Jun. 19, 1888 | F.A. Shoemaker | Grinding Machine | metal lathe accessories and attachments |
| 409,457 | Aug. 20, 1889 | F.A. Shoemaker, J.W. Dennis | Steam-engine | steam engines |
| 424,183 | Mar. 25, 1890 | J.W. Dennis, F.A. Shoemaker | Reversing-valve for steam-engines | steam engine valves |
| 437,941 | Oct. 07, 1890 | F.A. Shoemaker | Steam-engine | steam engines |
| 728,707 | May 19, 1903 | J. Hardill | Engine Governor | steam engine governors |
