| Patents for James Powell |
Patents 1 -
15
of 17
      |
| 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 |
| 189,652 | Apr. 17, 1877 | J. Powell | Chucks for Gas and Water Fittings | metal lathe chucks |
| 273,000 | Feb. 27, 1883 | J. Wrigley | Feed-table gage for curved work | bandsaw accessories |
| 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 |
| 379,243 | Mar. 13, 1888 | J. Powell | Lubricator | oil cups |
| 403,695 | May 21, 1889 | J. Powell | Lubricator | oil pumps |
| 408,927 | Aug. 13, 1889 | J. Powell | Lubricator | oil cups |
