Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860124 | Combined taximeter and cassette or disk player | — | 1989-08-22 |
| 4835373 | Appliance for transmission and storage of energy and information in a card-shaped data carrier | Manfred Lemke | 1989-05-30 |