Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D511579 | Retaining wall block | Angelo Risi | 2005-11-15 |
| D510144 | Retaining wall block | Angelo Risi | 2005-09-27 |
| D509910 | Retaining wall block | Angelo Risi | 2005-09-20 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D511579 | Retaining wall block | Angelo Risi | 2005-11-15 |
| D510144 | Retaining wall block | Angelo Risi | 2005-09-27 |
| D509910 | Retaining wall block | Angelo Risi | 2005-09-20 |