Patent US 4533861A
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| Patent number | US 4533861A (click link for details and documents via Google Patents) |
|---|---|
| Title | Stepping motor drive circuit |
| Inventors | Jerrold J. Rogers, Joseph S. Trumps |
| Company | Tektronix Inc |
| Filing date | 1983-10-13 |
| Grant date | 1985-08-06 |