Patent US 4994694A
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| Patent number | US 4994694A (click link for details and documents via Google Patents) |
|---|---|
| Title | Complementary composite PNP transistor |
| Inventors | Wink Gross |
| Company | Tektronix Inc |
| Filing date | 1989-08-23 |
| Grant date | 1991-02-19 |