Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867062 | Method of and a circuit for metering ink in rotary printing machines | Arndt Jentzsch, Falko Missbach, Volker Eichler | 1989-09-19 |
| 4835221 | Salts of polyvalent cations of polymers of conjugated dienes | Klaus Bronstert | 1989-05-30 |