Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6164650 | Board game | David B. Beffa-Negrini, David M. Hall | 2000-12-26 |
| 5810359 | Board game | David B. Beffa-Negrini, David M. Hall | 1998-09-22 |
| 4676374 | Hard case floppy disk holder | — | 1987-06-30 |