Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D300148 | Keycard with indexing channels | Franklin H. Sinclair | 1989-03-07 |
| D295920 | Keycard | Franklin H. Sinclair | 1988-05-31 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D300148 | Keycard with indexing channels | Franklin H. Sinclair | 1989-03-07 |
| D295920 | Keycard | Franklin H. Sinclair | 1988-05-31 |