GB 7419-1987 Information processing——Seven-bit coded character set for data exchange and its seven-bit and eight-bit extension on 3.81mm cassette tapes (English Version)
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB 7419-1987
GB 7419-1987 history
1987GB 7419-1987 Information processing——Seven-bit coded character set for data exchange and its seven-bit and eight-bit extension on 3.81mm cassette tapes