Patent US 4481549A
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| Patent number | US 4481549A (click link for details and documents via Google Patents) |
|---|---|
| Title | MFM data encoder with write precompensation |
| Inventors | John G. Theus |
| Company | Tektronix Inc |
| Filing date | 1980-12-22 |
| Grant date | 1984-11-06 |