Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841278 | Self-illuminant delineator and delineator system by use thereof | Kouji Nogami, Toshihide Koyano | 1989-06-20 |
HT
Hirofumi Tezuka
Overall (1989): #103,850 of 140,708Top 75%
1
Patents 1989