000			00333nam a2200145Ia 4500
008			170101s1965 xx 000 0 und d
082			_a621.382 D18L
100			_aDAS, P.N
245		0	_aLine telegraphy
260			_bCalcutta _c1965
300			_a197p
650			_aTELEGRAPH LINES
653			_aTELEGRAPH LINES
942			_2ddc _cB
999			_c24962 _d24962