Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4727014 | Process for the production of a standard calibration and test element, and a standard calibration and test element produced by the process | Klaus Horn, Hans-Joachim Schulz, Michael Roethe | 1988-02-23 |