Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854728 | Seawater probe | William H. Vreeland, Neil Brown | 1989-08-08 |
| 4509895 | Crowd drive assembly for power shovels | — | 1985-04-09 |
| 4464093 | Power shovel having improed hoist system | George J. Thompson | 1984-08-07 |
| 4278393 | Slack prevention system for a crowd rope of a power shovel | — | 1981-07-14 |
| 4239305 | Live roller circle for power shovels and the like | — | 1980-12-16 |
| 4236863 | Center pin assembly for power shovels | — | 1980-12-02 |
| 4221531 | Power shovel having improved front end assembly | George J. Thompson, Michael Palm | 1980-09-09 |