Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801317 | High efficiency particulate air filter and separators | by Gertrude B. F. Agnew, legal representative | 1989-01-31 |
| 4708724 | High efficiency particulate air filter and separators, therefor | — | 1987-11-24 |