Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4405665 | Ground covering with drainage-promoting members | Henry Lesch, Emile Evon | 1983-09-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4405665 | Ground covering with drainage-promoting members | Henry Lesch, Emile Evon | 1983-09-20 |