| Patents for Robert Crouch Parvin |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 119,878 | Oct. 10, 1871 | R.C. Parvin | Improvements in Traction Engines | traction engine tracks |
| 122,848 | Jan. 16, 1872 | R.C. Parvin | Improvements in Traction Engine | traction engine tracks |
| 122,849 | Jan. 16, 1872 | R.C. Parvin | Improvements in Traction Engine | traction engine steering apparatus |
| 122,850 | Jan. 16, 1872 | R.C. Parvin | Improvements in Land Carriages | traction engine tracks |
| RE4,753 | Feb. 13, 1872 | R.C. Parvin | Improvements in Traction Engines | traction engine tracks |
| 125,843 | Apr. 16, 1872 | R.C. Parvin | Improvement in Steam Harvesters | harvesters |
| CA-2,414 | Jun. 04, 1873 | R.C. Parvin | Perfectionnements Aux Locomotives | steam traction engines |
