| Patents for John H. Elward |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 236,565 | Jan. 11, 1881 | J.H. Elward | Traction Engine | steam traction engines |
| 248,151 | Oct. 11, 1881 | J.H. Elward | Feed mechanism for saw-mills | sawmill feed works |
| 253,023 | Jan. 31, 1882 | J.H. Elward | Traction Engine | steam traction engines |
| 268,648 | Dec. 05, 1882 | J.H. Elward | Traction Engine | steam traction engines |
| 272,670 | Feb. 20, 1883 | J.H. Elward | Traction Engine | steam traction engines |
| 279,925 | Jun. 26, 1883 | J.H. Elward | Traction Engine | steam traction engines |
| 305,165 | Sep. 16, 1884 | J.H. Elward | Drop-hammer | drop hammers |
| 329,153 | Oct. 27, 1885 | J.H. Elward | Traction Engine | traction engine propulsion components |
| 329,154 | Oct. 27, 1885 | J.H. Elward | Traction Engine | steam traction engines |
