Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4471666 | Vibratory ram for ramming and/or drawing of ramming members | Rudolf Hennecke | 1984-09-18 |
| 4412757 | Vibration machine for compacting materials, in particular an earth compacting machine | Friedrich Kummel, Rudolf Hennecke, Manfred Schubert | 1983-11-01 |