Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5428659 | Device for transferring electrical signals and electric energy to the memory device of a cassette | Ulrich Barthold | 1995-06-27 |
| 5276534 | Optical apparatus for maintaining a focussed image by interconnected adjustment of object and image distances | Ulrich Mutze | 1994-01-04 |
| 5173789 | Image scanner incorporating manually operable magnification and brightness control | Paul R. Shelley, Kenneth A. Parulski | 1992-12-22 |