Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560437 | Telemetry method for cable-drilled boreholes and method for carrying it out | Udo Dickel, Helmut Palm | 1996-10-01 |
| 5553677 | Survey process for cable core borings and device for implementing it | — | 1996-09-10 |
| 5517920 | Device for sequentially firing electrical detonators | Martin Richard Streich | 1996-05-21 |