Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4229225 | Cement-based powdered water-repellent composition, and its applications | Richard Kraszewski | 1980-10-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4229225 | Cement-based powdered water-repellent composition, and its applications | Richard Kraszewski | 1980-10-21 |