000 00248nam a2200073 4500
080 _a
_b
245 _aBS-3078 -1959 (with Amendment nos.1 & 2); Isolators (including selectors) for alternating-current systems
700 _aBritish Standards Institution
260 _aLondon
_bBSI
_c1959
300 _a55p
999 _c24764
_d24764