TREA

Electrically-operated educational appliances

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Industry

  • CPC
  • G09B5/00
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Parent Industries

GPHYSICS G09Cryptography, education, displays G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE MODELS PLANETARIA GLOBES MAPS DIAGRAMS

Current Industry

G09B5/00Electrically-operated educational appliances

Sub Industries

G09B5/02with visual presentation of the material to be studied G09B5/04with audible presentation of the material to be studied G09B5/06with both visual and audible presentation of the material to be studied G09B5/062Combinations of audio and printed presentations G09B5/065Combinations of audio and video presentations G09B5/067Combinations of audio and projected visual presentation G09B5/08providing for individual presentation of information to a plurality of student stations G09B5/10all student stations being capable of presenting the same information simultaneously G09B5/12different stations being capable of presenting different information simultaneously G09B5/125the stations being mobile G09B5/14with provision for individual teacher-student communication
Industries

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Patents Applicationslast 30 patents