Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247846 | Quick disconnectable screw device | Klaus-Dieter Grossmann, Holger S. Tews, heir | 1993-09-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247846 | Quick disconnectable screw device | Klaus-Dieter Grossmann, Holger S. Tews, heir | 1993-09-28 |