Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866284 | Irradiation device | Johannes A. Frankena, Jorrit Wijtsma | 1989-09-12 |
| D299976 | Hot air brush | — | 1989-02-21 |
ME
Marten F. Elkerbout
Overall (1989): #21,063 of 140,708Top 15%
2
Patents 1989