Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4228579 | Method and apparatus for winding a strip of film and for inserting it in a cassette | Franz-Heinz Dunkel, Ralf L. Klinkhammer, Heinz Nebel, Siegfried Spanner | 1980-10-21 |