00837nam0-22003131i-450-99000046263040332120070530151606.00-408-00069-4000046263FED01000046263(Aleph)000046263FED0100004626320020821d1972----km-y0itay50------baenga-------001yy<<The >>J&P Switchagear bookR. T. Lythall7th ed.LondonNewnes-Butterworthsc1972800 p.ill.23 cmMeccanismi elettrici621.31'7Lythall,R.T.339728ITUNINARICAUNIMARCBK99000046263040332110 D II 1918892DINELDINELJ&P Switchagear book334756UNINA