Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889811 | Methods for making leather | Juergen Christner, Tilmann Taeger | 1989-12-26 |
EP
Ernst Pfleiderer
Overall (1989): #116,361 of 140,708Top 85%
1
Patents 1989