| Patents for Joseph Hardill |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| CA-53,477 | Sep. 14, 1896 | J. Hardill | Steam engine | steam engines |
| CA-58,684 | Jan. 13, 1898 | J. Hardill | Steam engine | steam engines |
| 641,103 | Jan. 09, 1900 | J. Hardill | Compound steam-engine | steam engines |
| CA-76,662 | Jul. 15, 1902 | J. Hardill | Steam engine | steam engines |
| CA-76,663 | Jul. 15, 1902 | J. Hardill | Steam engine governor | steam engine governors |
| CA-76,664 | Jul. 15, 1902 | J. Hardill | Steam engine governor | steam engine governors |
| 728,707 | May 19, 1903 | J. Hardill | Engine Governor | steam engine governors |
