Patent US 5087930A
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| Patent number | US 5087930A (click link for details and documents via Google Patents) |
|---|---|
| Title | Drop-on-demand ink jet print head |
| Inventors | Joy Roy, John S. Moore |
| Company | Tektronix Inc |
| Filing date | 1989-11-01 |
| Grant date | 1992-02-11 |