Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5619788 | Punch head mountable in a press for fastening bolts to sheet material | — | 1997-04-15 |
| 5595149 | Method of first filling of a hydraulic valve actuating device | Walter Speil | 1997-01-21 |