Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776161 | Unbonded PC steel strand | Masamitsu Takei, Shigeo Shoji | 1988-10-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776161 | Unbonded PC steel strand | Masamitsu Takei, Shigeo Shoji | 1988-10-11 |