000 00309nam a2200109Ia 4500
008 220201s1968 xx 000 0 eng d
100 _aIndian Standard Institute
245 0 _aIS:2607 specification airbreak isolators for voltage not exceeding 1000 voltz
260 _bISI
_c1968
300 _a14
942 _2ddc
999 _c74653
_d74653