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Servo control appartaus and method using absolute value input signals
- Patent number RE40545
- Issue date Oct 21, 2008
- Purchased Patent Management LLC
- Petros A. Ioannou
- 360 - Dynamic magnetic information storage or retrieval
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Method and apparatus for developing a dynamic servo signal from data
- Patent number RE40413
- Issue date Jul 1, 2008
- Purchased Patent Management LLC
- Alvin M. Despain
- 360 - Dynamic magnetic information storage or retrieval

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