Graphical symbols used in electrotechnology : part - 26 : rotating machines
Graphical symbols used in electrotechnology : part - 26 : rotating machines
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- New Delhi BIS 1982
- 13 p.
- ISI 2032 : part - 26 : 1982 .
BISI 2032 : part - 26 : 1982
BISI 2032 : part - 26 : 1982