Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810627 | Photographic recording material | Hans Ohlschlager, Walter Patzold, Karl Steinbeck | 1989-03-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810627 | Photographic recording material | Hans Ohlschlager, Walter Patzold, Karl Steinbeck | 1989-03-07 |