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Prisma exagonal montado sobre un triciclo una de cuyas ruedas al andar acciona un eje vertical produciendo un movimiento de rotación al prisma en cuyas caras van impresos los anuncios. Además va iluminado al trasluz por acumuladores.
ES0005966U1940-09-241940-09-24Una cartelera rotativa ambulante y luminosa
PendingES5966U
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