Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442004 | Biasing arrangement and filter unit for a filtering apparatus | Frank Haimbach, IV | 1984-04-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442004 | Biasing arrangement and filter unit for a filtering apparatus | Frank Haimbach, IV | 1984-04-10 |