Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668816 | Concrete stone texturing machine, method and product | Hans Pedersen | 2003-12-30 |
| 6575727 | Apparatus for roughing surfaces of concrete casted blocks | Yvon Laporte, Hugo Laporte | 2003-06-10 |
| 6561786 | Apparatus for roughing surfaces of concrete casted blocks | — | 2003-05-13 |