000 00309nam a2200121Ia 4500
008 220201s1959 xx 000 0 eng d
082 _bISI
100 _aI.S.I.
245 0 _acode of safety requirements for electric mains operated amplifiers
260 _aDelhi
_bI.S.I.
_c1959
300 _a12
942 _2ddc
999 _c19349
_d19349