Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4436313 | Device for sealing a propeller shaft against invasion of sea water | Hiroshi Tamama, Yukio Ozawa, Jingo Miyazaki, Hiroshi Ito | 1984-03-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4436313 | Device for sealing a propeller shaft against invasion of sea water | Hiroshi Tamama, Yukio Ozawa, Jingo Miyazaki, Hiroshi Ito | 1984-03-13 |