Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327469 | Method for mounting ring-shaped construction on ship stern | Koichi Yamanaka, Yoshiharu Sakai, Takashi Hirono | 1982-05-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327469 | Method for mounting ring-shaped construction on ship stern | Koichi Yamanaka, Yoshiharu Sakai, Takashi Hirono | 1982-05-04 |