Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5502941 | Method and apparatus for producing an ornamental concrete surface | Louis F. Zember, James Ogilvie, Edward Shea | 1996-04-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5502941 | Method and apparatus for producing an ornamental concrete surface | Louis F. Zember, James Ogilvie, Edward Shea | 1996-04-02 |