| Patents for William Powell Co. |
Patents 1 -
15
of 26
      |
| Number | Date | Patentee | Title | Type |
| 159,962 | Feb. 16, 1875 | J. Powell | Lubricator for Steam Engines | oil cups |
| 189,651 | Apr. 17, 1877 | J. Powell | Lubricators for Steam Engines | oil cups |
| 248,609 | Oct. 24, 1881 | J. Powell | Lubricator | steam engine lubricators |
| 326,517 | Sep. 15, 1885 | J. Powell | Lubricator | oil cups |
| 326,518 | Sep. 15, 1885 | J. Powell | Lubricator | oil cups |
| 326,519 | Sep. 15, 1885 | J. Powell | Lubricator | oil cups |
| 326,520 | Sep. 15, 1885 | J. Powell | Lubricator | grease cups |
| 326,521 | Sep. 15, 1885 | J. Powell | Lubricator | oil cups |
| 332,623 | Dec. 15, 1885 | J. Powell | Lubricator | grease cups |
| 335,146 | Feb. 02, 1886 | J. Powell | Lubricator | grease cups |
| RE10,728 | May 18, 1886 | J. Powell | Lubricator | grease cups |
| 365,629 | Jun. 28, 1887 | J. Powell | Lubricator | steam engine lubricators |
| 372,764 | Nov. 08, 1887 | J.W. Powell | Lubricator | oil cups |
| 379,243 | Mar. 13, 1888 | J. Powell | Lubricator | oil cups |
| 403,695 | May 21, 1889 | J. Powell | Lubricator | oil pumps |
