Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6109279 | Locking device for an umbrella and method of use | Joseph Bossler | 2000-08-29 |
| 4378704 | Process and device to identify differences in yarn tension | Hans-Joachim a'Brassard, Paul Ketzler, Johannes Wolz | 1983-04-05 |