Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655864 | Expansible fixing plug | Manfred Haage, Gunter Seibold, Bernd Plocher, Bernd Hein | 1997-08-12 |
| 5647709 | Anchor bolt anchorable by explosive charge | Bernd Hein, Rolf Prummer, Hans Peter Mehlin | 1997-07-15 |
| 5634752 | Anchor bolt for anchoring by compound mass, and method of manufacturing the same | Manfred Haage, Guenter Seibold, Bernd Plocher, Bernd Hein | 1997-06-03 |