Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4718730 | Cross-axis cutting assembly of a selective cutting machine | — | 1988-01-12 |
| 4558629 | Hydraulic control means for pipe thrust-jacking apparatus | Herbert Heitkamp | 1985-12-17 |
| 4482270 | Drive shields for tunnel-driving apparatus | Dieter Stuckmann, Jurgen Hein | 1984-11-13 |
| 4457212 | Hydraulic ram | Herbert Heitkamp, Heinz Hessel, Karl-Heinz Plester, Manfred Lagodka | 1984-07-03 |
| 4317594 | Mounting for material loading means in a mining tunnelling machine | — | 1982-03-02 |