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US2005272437A1
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Data acquisition system and mobile terminal
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TW412909B
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Mechanism of matching between a receiver and a security module
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WO9402937A2
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Data signal recording and reproduction method
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CH682614A5
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Method for scrambling and unscrambling a video signal.
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CH683580A5
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Method and device for scrambling and descrambling a video signal.
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LU87472A1
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Paid television system using a memory card associated with a decoder
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WO8809550A1
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Magnetic or other recording device with rotating engraving head(s)
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EP0104029A2
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Control system for an electric motor
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EP0104030A2
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Tape driving capstan
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EP0104031A2
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Tape tension sensor and servo embodying same
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EP0104032A2
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Magnetic tachometer assembly
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EP0106509A2
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Tape loop sensing arm and tape guide for magnetic tape recording and playback machines
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