Patent US 3739347A
| Patent number | US 3739347A (click link for details and documents via Google Patents) |
|---|---|
| Title | Cursor for use in performing graphic input in a display |
| Inventors | Charles A Forsberg |
| Company | Tektronix Inc |
| Filing date | 1970-03-20 |
| Grant date | 1973-06-12 |