000 00325nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.3173 M8884
100 _aMORTLOCK,J.R
245 0 _aALTERNATING-CURRENT SWITCH GEAR
250 _a1
260 _aLONDON
_bChapman & Hall
_c1956
300 _a22X14
942 _cBK
_2DDC
999 _c11836
_d11836