Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6540501 | Method and apparatus for producing concrete blocks with textured surfaces | — | 2003-04-01 |
| 6523317 | Wall block with interlock | Robert A. Gravier | 2003-02-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6540501 | Method and apparatus for producing concrete blocks with textured surfaces | — | 2003-04-01 |
| 6523317 | Wall block with interlock | Robert A. Gravier | 2003-02-25 |