Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638113 | Transaction based interactive television system | John P. Lappington, Susan K. Marshall, Wayne Y. Yamamoto | 1997-06-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638113 | Transaction based interactive television system | John P. Lappington, Susan K. Marshall, Wayne Y. Yamamoto | 1997-06-10 |