Interactive talking picture machine
Interactive talking picture machine
Interactive teaching toy
Interactive toy
Interactive toy
Interactive toy
Magnetic switch and apparatus including magnetic switch
Mechanical assembly for audio-visual teaching machines
Memory scanning device
Method and apparatus for easily changing the menu of a juke box
Method and apparatus for providing training information...
Method and device for audibly instructing a user to interact...
Method and system for interactive case and video-based...
Method for making an electronic book for producing audible sound
Method of combining audio and visual indicia
Method of singing instruction
Multimedia-book operable with removable data storage media imple
Multiple listening training device and a multiple listening...
Multipurpose learning device
Order receiving method and apparatus for making...