Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5455479 | Mounting for quartz-oscillator discs | — | 1995-10-03 |
| 5350963 | Holder for quartz resonator disks and process for the production of such holders | Johann Piegendorfer | 1994-09-27 |