Patent US 4893646A
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| Patent number | US 4893646A (click link for details and documents via Google Patents) |
|---|---|
| Title | Fluid pressure regulator |
| Inventors | Guenther W. Wimmer |
| Company | Tektronix Inc |
| Filing date | 1988-04-28 |
| Grant date | 1990-01-16 |