Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880577 | Process for producing self-restoring over-current protective device by grafting method | Kumakazu Okita, Masaru Kiriyama | 1989-11-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880577 | Process for producing self-restoring over-current protective device by grafting method | Kumakazu Okita, Masaru Kiriyama | 1989-11-14 |