Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4205040 | Exposed aggregate finishing method for concrete | Tsuyoshi Aoyama, Yoshimasa Hayashi, Hirotaka Toba, Akira Yoshida, Kenji Goto | 1980-05-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4205040 | Exposed aggregate finishing method for concrete | Tsuyoshi Aoyama, Yoshimasa Hayashi, Hirotaka Toba, Akira Yoshida, Kenji Goto | 1980-05-27 |