Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776588 | Dry compressing vacuum pump having a gas ballast device | Lutz Arndt, Thomas Dreifert, Michael Holzemer, Jurgen Meyer | 2004-08-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776588 | Dry compressing vacuum pump having a gas ballast device | Lutz Arndt, Thomas Dreifert, Michael Holzemer, Jurgen Meyer | 2004-08-17 |