000 00291nam a2200085Ia 4500
008 180131b1933 xxu||||| |||| 00| 0 eng d
080 _a
_b
100 _aEra Technology Ltd
245 _aEra-M/T20 - 1933; Experiments On Earth Currents From Overhead Lines. Tests On The Carlisle-Lancaster
260 _a
_bERA Technology Ltd
_c1933
999 _c64089
_d64089