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Data transmission system signal conversion equipment for unswitched voice frequency channels, using compression information cod
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System for multiplexing sound channel television. Basic parameters
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Information and communication technologies in education. Electronic-library systems. General regulations
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Information technology. Learning, education, and training. Content packaging. Part 1. Information model
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Information technology. Open systems interconnection. Systems management overview
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Identification cards. Recording technique. Part 8. Magnetic stripe of coercivity of 51,7 kA/m (650 Oe)
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