000 | 00248nam a2200073 4500 | ||
---|---|---|---|
080 |
_a _b |
||
245 | _aIS:10406 - 1983; Specification for intrinsically safe transformers primarily for bell signalling circuits | ||
700 | _aBureau of Indian Standards | ||
260 |
_aNew Delhi _bBIS _c1983 |
||
300 | _a16p | ||
999 |
_c33510 _d33510 |