Patent US 4782290A
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| Patent number | US 4782290A (click link for details and documents via Google Patents) |
|---|---|
| Title | Apparatus for measuring characteristics or electronic devices |
| Inventors | Ryoichi Sakai, Hisashi Tamamura |
| Company | Sony/Tektronix Inc |
| Filing date | 1987-07-17 |
| Grant date | 1988-11-01 |