IS: 1885 (part 74) - 1993/IEC Pub. 0050 (151) - 1978; Electrotechnical vocabulary Part 74 Electrical and magnetic devices
IS: 1885 (part 74) - 1993/IEC Pub. 0050 (151) - 1978; Electrotechnical vocabulary Part 74 Electrical and magnetic devices
- New Delhi BIS 1993
- 13p
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