Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5046887 | Guttered paving blocks | William H. Emery | 1991-09-10 |
| 4254077 | Method for making decorative inlaid concrete blocks | Louis R. Fontana | 1981-03-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5046887 | Guttered paving blocks | William H. Emery | 1991-09-10 |
| 4254077 | Method for making decorative inlaid concrete blocks | Louis R. Fontana | 1981-03-03 |