Patent US 4662622A
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| Patent number | US 4662622A |
|---|---|
| Title | Air density adaptive vacuum controller |
| Inventors | Guenther W. Wimmer, David B. Kreitlow |
| Company | Tektronix Inc |
| Filing date | 1984-07-18 |
| Grant date | 1987-05-05 |
| Cites |