Patent US 3970889A
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| Patent number | US 3970889A |
|---|---|
| Title | Erasure means for charge storage device |
| Inventors | Hal Cobb |
| Company | Tektronix Inc |
| Filing date | 1973-11-21 |
| Grant date | 1976-07-20 |
| Cites | Patent US 3796910A, Patent US 3293473A, Patent US 3312850A |