Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7127978 | Circular saw machine | Stefan Boss, Fritz Heydt | 2006-10-31 |
| 6881105 | Method for manufacture of microsliding contacts | — | 2005-04-19 |
| 5189278 | Method for edge rounding of springs | — | 1993-02-23 |
| 4776718 | Writing implement | Werner Heinzmann | 1988-10-11 |
| 4770558 | Ink writing or drawing instrument | — | 1988-09-13 |