Patent US 4763117A
| Patent number | US 4763117A (click link for details and documents via Google Patents) |
|---|---|
| Title | Measurement instruments with multiple operation levels |
| Inventors | John D. Blattner, David B. Moser, Sam M. Deleganes |
| Company | Tektronix Inc |
| Filing date | 1987-05-26 |
| Grant date | 1988-08-09 |