Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796726 | Ultrasonic rangefinder | Hiroshi Kobayashi | 1989-01-10 |
HO
Hiroaki Obayashi
Overall (1989): #104,482 of 140,708Top 75%
1
Patents 1989