Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886599 | Filter cartridge with series elements for chemical and mechanical filtration | Paul Bachmann, Hanns-Peter Berges | 1989-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886599 | Filter cartridge with series elements for chemical and mechanical filtration | Paul Bachmann, Hanns-Peter Berges | 1989-12-12 |