Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353646 | Apparatus for positioning originals in photographic copying machines | Siegfried Bartel, Ernst Biedermann, Franz Kramer | 1982-10-12 |
| 4330096 | Apparatus for winding or unwinding webs of photosensitive material or the like | Siegfried Bartel, Bernd Payrhammer | 1982-05-18 |