Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300147 | Low brightness magnesium silicate SLR filler, low-brightness paper containing the filler and methods to produce the filler and use it in low brightness papers | Kaarina Heikkila | 1994-04-05 |