Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969914 | Airplane window polishing device | Toshiaki Ikegaya, Takashi Shirahata, Yasumasa Koyama | 1990-11-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969914 | Airplane window polishing device | Toshiaki Ikegaya, Takashi Shirahata, Yasumasa Koyama | 1990-11-13 |