Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4316826 | Clay and cement mortars, methods of preparing them | Michel Laquerbe | 1982-02-23 |
| 4309325 | Clay-cement mortars and to the product made with said mortars | Michel Laquerbe | 1982-01-05 |