Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362391 | Watch with a calendar display and hand setting device actuated by a setting shaft | Wolfgang Ganter | 1982-12-07 |
| 4244038 | Watch having adjustable date and day indicators | Wolfgang Ganter, Albert Ginter, Peter Riis | 1981-01-06 |
| 4241440 | Battery-containing crown for wristwatches | — | 1980-12-23 |