Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6164618 | Joining method and joining structure as well as form for concrete products | — | 2000-12-26 |
| 6052960 | Water cutoff junction member for concrete products to be joined together | — | 2000-04-25 |
| 6014849 | Joining method and joining structure as well as form for concrete products | — | 2000-01-18 |