Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811356 | Cable and method for laying in plastic tubes | Hans-Detlef Leppert | 2004-11-02 |
| 6796743 | Internal line for fastening cables in a waste-water pipe | Hans-Detlef Leppert, Wolfgang Teschner | 2004-09-28 |