Patent US 4542390A
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| Patent number | US 4542390A |
|---|---|
| Title | Ink jet printer purging device and process |
| Inventors | John W. Bruning, Stephen C. Fuller |
| Company | Tektronix Inc |
| Filing date | 1983-07-29 |
| Grant date | 1985-09-17 |
| Cites |