Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467999 | Internal pressure regulating system for flexible bag body, flexible membrane dam using the same, and method for regulating internal pressure in the flexible membrane dam | Tateo Muramatsu, Masaru Kaneko | 2002-10-22 |