Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813031 | Apparatus for reproducing information from an optically readable record carrier | — | 1989-03-14 |
MB
Martinus P. M. Bierhoff
Overall (1989): #82,214 of 140,708Top 60%
1
Patents 1989