Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874449 | Process for dressing a substantially flat substrate such as split leather or a textile material | Philipp Schaefer | 1989-10-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874449 | Process for dressing a substantially flat substrate such as split leather or a textile material | Philipp Schaefer | 1989-10-17 |