Patent US 4528642A
| Patent number | US 4528642A (click link for details and documents via Google Patents) |
|---|---|
| Title | Completing a fill pattern inside a redrawn panel outline |
| Inventors | William G. Waller |
| Company | Tektronix Inc |
| Filing date | 1982-04-12 |
| Grant date | 1985-07-09 |