Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354218 | Process and apparatus for multi-polar magnetization of annular permanent magnets | Dietrich Steingroever | 1982-10-12 |
| 4331101 | Electrographic copying device with magnetic cylinder | Werner Muller | 1982-05-25 |