Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6843615 | Compaction roller | Christoffel Avril Mijburgh | 2005-01-18 |
| 6382873 | Soil levelling device | David Alfred Mulders, Gideon Slyper, Stephen Van Dyk | 2002-05-07 |
| 6065904 | Soil compaction apparatus | Aubrey Ralph Berrange | 2000-05-23 |
| 6004076 | Method and apparatus for monitoring soil compaction | Aubrey Ralph Berrange | 1999-12-21 |