| http://www.w3.org/ns/prov#value | - Patente US5793980 - Audio-on-demand communication system - Google PatentesB???squeda Im???genes Maps Play YouTube Noticias Gmail Drive M???s ??Iniciar sesi???n B???squeda avanzada de patentesPatentesAn audio-on-demand communication system provides real-time playback of audio data transferred via telephone lines or other communication links.
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