Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814020 | Readily dispersible nacreous pigment preparation | Otto Stahlecker | 1989-03-21 |
MK
Manfred Kieser
Overall (1989): #80,624 of 140,708Top 60%
1
Patents 1989