Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226653 | Multilevel play feature for a pinball game | Zofia Bil, Barry Oursler | 1993-07-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226653 | Multilevel play feature for a pinball game | Zofia Bil, Barry Oursler | 1993-07-13 |