Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5506637 | Bridge structure of spectacles frame | Yoshio Chikama | 1996-04-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5506637 | Bridge structure of spectacles frame | Yoshio Chikama | 1996-04-09 |