Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849681 | Battery-powered device | Robert-Han Munnig Schmidt | 1989-07-18 |
| 4835453 | Battery-powered device | Robert-Han Munning Schmidt | 1989-05-30 |
GB
Geert J. Bosscha
Overall (1989): #27,432 of 140,708Top 20%
2
Patents 1989