Patent US 5001670A
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| Patent number | US 5001670A (click link for details and documents via Google Patents) |
|---|---|
| Title | Nonvolatile memory protection |
| Inventors | Timothy W. Slate, Bruce J. Penney |
| Company | Tektronix Inc |
| Filing date | 1987-02-06 |
| Grant date | 1991-03-19 |