Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616169 | Seal-free and frame-free odor and/or pollutant filter | Ernest De Ruiter | 1997-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616169 | Seal-free and frame-free odor and/or pollutant filter | Ernest De Ruiter | 1997-04-01 |