Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869928 | Inner surface coating method and device for piping | Takashi Nakao, Kazunori Nakano, Akira Kojima | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869928 | Inner surface coating method and device for piping | Takashi Nakao, Kazunori Nakano, Akira Kojima | 1989-09-26 |