Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4487655 | Process of and composition for de-inking waste paper as well as paper reclaimed by said process | Siegfried N/o/ etzel, Margarete Scholl | 1984-12-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4487655 | Process of and composition for de-inking waste paper as well as paper reclaimed by said process | Siegfried N/o/ etzel, Margarete Scholl | 1984-12-11 |