IS: 1885 (Part 28) - 1993/IEC 50 (321) - 1986; Electrotechnical vocabulary Part 28 instrument transformers

IS: 1885 (Part 28) - 1993/IEC 50 (321) - 1986; Electrotechnical vocabulary Part 28 instrument transformers - New Delhi BIS 1993 - 8p

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