Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624394 | Vacuum system and a method of operating a vacuum system | James C. Barnitz, David C. Downey | 1997-04-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624394 | Vacuum system and a method of operating a vacuum system | James C. Barnitz, David C. Downey | 1997-04-29 |