Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823337 | Device for recording information on or reading information from an information disc | Pieter Van Zanten | 1989-04-18 |
EM
Evert Mulder
Overall (1989): #115,772 of 140,708Top 85%
1
Patents 1989