000 | 00273nam a2200085Ia 4500 | ||
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008 | 180131b1938 xxu||||| |||| 00| 0 eng d | ||
080 |
_a _b |
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100 | _a | ||
245 | _aEra-M/T57 - 1938; General Aspects Of Interference With Communication Circuits Due To Neutral Current | ||
260 |
_a _bERA Technology Ltd _c1938 |
||
999 |
_c64109 _d64109 |