Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820379 | Method for deinking wastepaper with a halogenated polyethylene oxide and a polymeric material | — | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820379 | Method for deinking wastepaper with a halogenated polyethylene oxide and a polymeric material | — | 1989-04-11 |