Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4341451 | Camera having depth of focus indicating means | Roland Krueger, Joachim Proske, Walter Swarofsky | 1982-07-27 |
| 4329578 | Optical imaging system having variable focal length | — | 1982-05-11 |