Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841278 | Self-illuminant delineator and delineator system by use thereof | Hirofumi Tezuka, Kouji Nogami | 1989-06-20 |
TK
Toshihide Koyano
Overall (1989): #48,719 of 140,708Top 35%
1
Patents 1989