| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 335/291 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 6,121 | Feb. 20, 1849 | R. Cook | Improvement in Electro-Magnetic Ore-Separators | ore processing apparatus | |
| 2,794,941 | Jun. 04, 1957 | A. Anderson | Magnetic lifting unit | ||
| 3,196,320 | Jul. 20, 1965 | J.F. Manting | Magnetic lift device | ||