Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213869 | Corrugated roofing sheets of synthetic fiber reinforced cement, with a rough surface due to the presence of granular material | — | 1993-05-25 |
| 4960616 | Corrugated roofing sheets of synthetic fiber-reinforced cement, with a rough surface due to the presence of granular material | — | 1990-10-02 |