Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5261770 | Nail fastener assembly | Hans Hachtel, Horst-Detlef Gassmann | 1993-11-16 |
| 4915561 | Fastening element assembly with a deformable sleeve | Reinhard Buhri, Elmar Thurner, Alfred Tobler | 1990-04-10 |