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Device for with demonstration a luminescent wander document by means of a between a light source and a profiled blade disk with running belt of transparent - permeable letters, which the flicker or twitching, which on - lamps or lost when the incandescence electrical drift document is advertising
Device for with demonstration a luminescent wander document by means of a between a light source and a profiled blade disk with running belt of transparent - permeable letters, which the flicker or twitching, which on - lamps or lost when the incandescence electrical drift document is advertising