CPC Subgroup
G09B 1/24 the elements being in flexible strip form, e.g. endless bands
Full Title
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 (puzzle-games A63F9/00; advertising or displaying in general G09F) > 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 in flexible strip form, e.g. endless bands