Patent US 4541691A
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| Patent number | US 4541691A |
|---|---|
| Title | Electro-optic switching system using circularly polarized light |
| Inventors | Thomas S. Buzak |
| Company | Tektronix Inc |
| Filing date | 1983-12-27 |
| Grant date | 1985-09-17 |
| Cites |