Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4911420 | Arrangement for transporting a record chart bundle | Norbert Helmschrott | 1990-03-27 |
| 4903044 | Arrangement for the automatic and correct positioning with respect to time of a record chart bundle serving to record in segments in a continuous manner | Benjamin Saeger, Josef Wangler, Norbert Helmschrott | 1990-02-20 |