Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349509 | Oxygen indicator adapted for printing or coating and oxygen-indicating device | Yoshio Yoshikawa, Takanari Nawata, Yukio Kondo | 1982-09-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349509 | Oxygen indicator adapted for printing or coating and oxygen-indicating device | Yoshio Yoshikawa, Takanari Nawata, Yukio Kondo | 1982-09-14 |