Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6721912 | Data carrier module having indication means for indicating the result of a test operation | Michael Cernusca | 2004-04-13 |
| 6708891 | Data carrier having a communication resonant circuit and having means for changing the resonant frequency of this resonant circuit in either sense | Franz Amtmann | 2004-03-23 |