Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6536847 | Pick box for housing a mineral cutter pick | William Stephen Clapham, John Joseph Warren, Angelo Weigelt | 2003-03-25 |
| 4437707 | Spraying nozzle arrangement | Gerd Best | 1984-03-20 |