CPC Subgroup
G09B 5/12 different stations being capable of presenting different information simultaneously (G09B5/14 takes precedence)
Full Title
Electrically-operated educational appliances (working with questions and answers G09B7/00; simulators G09B9/00; advertising or displaying in general G09F) > providing for individual presentation of information to a plurality of student stations > different stations being capable of presenting different information simultaneously (G09B5/14 takes precedence)
1 direct subcode
Child Classifications
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