Including Selection Of Type-face Patents (Class 400/154.1)
Via pulley and cord arrangement (e.g., summing displacements) (Class 400/154.2)
By shortest peripheral path (Class 400/154.3)
Via coded disc in electric or magnetic circuit (e.g, photoelectric) (Class 400/154.4)
Via stepping motor responsive to selection (Class 400/154.5)
Via electrical or electromagnetic means (Class 400/155)
Via helical arrangement of projections (Class 400/156)
Via mechanically permutated bar(s), disc(s), or plate(s) (Class 400/156.1)
Via planetary gear arrangement (Class 400/156.2)

There are no patents to show for this class.