Combination question-answer book and answer display
Computer assisted interactive entertainment/educational characte
Computer-based teaching apparatus
Device for displaying multiple scenes animated by sequences...
Device for identifying an object using an omnidirectional bar co
Device for recording multiple discrete messages for a book
Document interpreting systems
Early learning book system with internal, electronic media...
Educational and training simulator system and method
Educational audio playback device including hidden graphical ima
Educational device
Electric self-teaching apparatus utilizing printed and auditory
Electrical flash card unit and method of use
Electronic book
Electronic book
Electronic book
Electronic book and method
Electronic book and method of displaying at least one reading me
Electronic book with simulated three-dimensional illustrations
Electronic game board