Is: 1885 (Part Xxxvii) - 1973; Electrotechnical Vocabulary Part 37 Tariffs For Electricity
Indian Standards Institution
Is: 1885 (Part Xxxvii) - 1973; Electrotechnical Vocabulary Part 37 Tariffs For Electricity - BIS 1974
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Is: 1885 (Part Xxxvii) - 1973; Electrotechnical Vocabulary Part 37 Tariffs For Electricity - BIS 1974
/