Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832791 | Multipurpose sheet material and method of manufacture | Ernst-Rolf Detert, Wilhelm H. Buchholz | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832791 | Multipurpose sheet material and method of manufacture | Ernst-Rolf Detert, Wilhelm H. Buchholz | 1989-05-23 |