Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5722800 | Seal and its production method for the creation of load bearings, removable earth masses for the construction of underground structures such as cavity structures | — | 1998-03-03 |
| 5441366 | Method and apparatus for compacting garbage dumps by means of depth vibration | — | 1995-08-15 |
| 5421673 | Method for gaining garbage dump space by means of garbage compaction | Ernst Raabe | 1995-06-06 |