Card having retroreflective bar codes and a magnetic stripe
作者： Hirohisa Takada
DOI:
关键词: Distortion 、 Substrate (printing) 、 Optics 、 Engineering drawing 、 Bar (music) 、 Materials science
摘要: A card having retroreflective bar codes is comprised of a substrate on which there are provided first information recording portion formed material predetermined pattern and second can be read out from nearby place. Also, recorded tracks portions nonretroreflective heat distortion member or by selective heating process in response to recorded.
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