Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6867694 | Method and system for detecting and rewarding the return of shopping trolleys | Horst Sonnendorfer | 2005-03-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6867694 | Method and system for detecting and rewarding the return of shopping trolleys | Horst Sonnendorfer | 2005-03-15 |