Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314756 | Cleaning device | Takashi Ito, Kazuhiro Hirayama | 1982-02-09 |
JA
Joji Amitani
Overall (1982): #54,070 of 81,411Top 70%
1
Patents 1982