Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662824 | Check valve slantedly biased against pressure-imposing direction | Shozo Inage | 2003-12-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662824 | Check valve slantedly biased against pressure-imposing direction | Shozo Inage | 2003-12-16 |