Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616395 | Process for the production of two-layer textile reinforcement adapted for the production of bituminous sealing sheets for roofing and reinforcement thus obtained | Jean Baravian, Ulrich Jahn, Jean-Jacques Beck | 1997-04-01 |