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An Entity of Type : prov:Entity, within Data Space : webisadb.webdatacommons.org associated with source dataset(s)

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  • A further object is to provide a signal transmission apparatus for a teaching system, as aforesaid, in which main signals representing teaching or instructional materials are provided from a number of sources at the master station and may be transmitted simultaneously along with the audio and control or other signals multiplexed thereon, and the main signals representing desired teaching or instru
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