Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5517592 | Sleeve for branch or joint areas in optical or electrical cables | Franz Grajewski, Hans-Holger Freckmann, Werner Stieb, Zbigniew Wielgolaski | 1996-05-14 |
| 5376196 | Method for sealing the end of a heat-shrunk sleeve | Franz Grajewski | 1994-12-27 |
| 5335398 | Device for sealing the end of a heat-shrunk sleeve | Franz Grajewski | 1994-08-09 |