Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871942 | Low-pressure discharge lamp | Petrus R. Van Ijzendoorn | 1989-10-03 |
AB
Adrianus L. J. Burgmans
Overall (1989): #135,112 of 140,708Top 100%
1
Patents 1989