Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6635036 | Valve system for a collection bag | Allan Tanghoej | 2003-10-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6635036 | Valve system for a collection bag | Allan Tanghoej | 2003-10-21 |