Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4640654 | Anchor | Artur Fischer, Manfred Haage | 1987-02-03 |
| 4527932 | Self-tapping screw | Gottfried W. Ehrenstein | 1985-07-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4640654 | Anchor | Artur Fischer, Manfred Haage | 1987-02-03 |
| 4527932 | Self-tapping screw | Gottfried W. Ehrenstein | 1985-07-09 |