Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4541700 | Method and devices for transferring electrical signal information between a photographic lens and camera | Walter Bletz, Walter Mandler | 1985-09-17 |
| 4506968 | Photographic camera and interchangeable lens for use therewith | — | 1985-03-26 |
| 4439011 | Apparatus for focusing an optical system | — | 1984-03-27 |
| 4328711 | Reduction gear | Georg Mann, Gerhard Salzmann | 1982-05-11 |