| http://www.w3.org/ns/prov#value | - photosensors juxtaposed along a line perpendicular to a lengthwise direction in which said photographic film is transported, said two bar code sensor units having the same structure; sampling means for sampling, at the same time, a plurality of types of signals outputted respectively by said photosensors, said sampling being performed each time said photographic film is transported by a predeterm
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