Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272775 | Rear dumping dragline bucket and rigging system | DuWayne A. Marthaller, Karl Lemmerman, Dean Bray, William Lengenfelder, R. Steven Metzger | 2001-08-14 |
| 5400530 | Dragline excavator bucket and rigging | — | 1995-03-28 |
| 5243739 | Two piece cable termination socket assembly | — | 1993-09-14 |