Patent US 4757538A
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| Patent number | US 4757538A (click link for details and documents via Google Patents) |
|---|---|
| Title | Separation of L+R from L-R in BTSC system |
| Inventors | Scott E. Zink |
| Company | Tektronix Inc |
| Filing date | 1986-07-07 |
| Grant date | 1988-07-12 |