Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640818 | Brick walls | Michelle Ann Wirkus | 1997-06-24 |
| 5640819 | Glass block wall | Michelle Ann Wirkus | 1997-06-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640818 | Brick walls | Michelle Ann Wirkus | 1997-06-24 |
| 5640819 | Glass block wall | Michelle Ann Wirkus | 1997-06-24 |