Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669589 | Pipe and cable clamp with base part and receiving strap | Rupert Janssen, Markus Frowis | 1997-09-23 |
| 5651489 | Fastening element setting tool | Rupert Janssen, Markus Froewis | 1997-07-29 |
| 5624220 | Attachment member including a nail and a prestressing element | Rupert Janssen, Markus Frowis | 1997-04-29 |