Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871791 | Permanently plasticized, cellulose-based product | Klaus-Dieter Hammer, Manfred Siebrecht | 1989-10-03 |
HW
Hermann Winter
Overall (1989): #105,915 of 140,708Top 80%
1
Patents 1989