195199 ⎘
Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways and having a support carrying or adapted to carry the elements the elements each bearing a plurality of different symbols, signs, or combinations of symbols and signs, only one symbol, sign, or combination thereof, of each element to be used at a time the elements being rotatable and bearing the symbols on a surface parallel to the axis of rotation
AUTOCORRECTING DEVICE SUITABLE FOR LEARNING A RULE OF GRAMMAR IN A ROMANCE LANGUAGE
#2A BOARD GAME APPARATUS AND A METHOD OF PLACEMENT OF TOKENS ON THE SAME
#3Device and Process for Instructing Children in Goals and Success
#4Place value teaching device
#5Music teaching device
#6Learning tool