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| Patents for John H. Elward | |||||
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| Picture | Number | Date | Patentee | Title | |
| 236,565 | Jan. 11, 1881 | J.H. Elward | Traction Engine | ||
 | 248,151 | Oct. 11, 1881 | J.H. Elward | Feed mechanism for saw-mills | |
| 253,023 | Jan. 31, 1882 | J.H. Elward | Traction Engine | ||
| 268,648 | Dec. 05, 1882 | J.H. Elward | Traction Engine | ||
| 272,670 | Feb. 20, 1883 | J.H. Elward | Traction Engine | ||
| 279,925 | Jun. 26, 1883 | J.H. Elward | Traction Engine | ||
 | 305,165 | Sep. 16, 1884 | J.H. Elward | Drop-hammer | |
| 329,153 | Oct. 27, 1885 | J.H. Elward | Traction Engine | ||
| 329,154 | Oct. 27, 1885 | J.H. Elward | Traction Engine | ||