G09B 21/008
{Teaching or communicating with blind persons using visual presentation of the information for the partially sighted}
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Edits on 5 Mar, 2022
Golden AI
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Infobox (+4 properties)
Description (+118 characters)
G09B 21/008
{Teaching or communicating with blind persons using visual presentation of the information for the partially sighted}
Infobox
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Parent classification
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