000 00286nam a2200085Ia 4500
008 180131b1976 xxu||||| |||| 00| 0 eng d
080 _a
_b
100 _aIndian Standards Institution
245 _aIs: 2175 - 1977; Specification For Heat Sensitive Fire Detectors For Use In Automatic Electrical Fir
260 _a
_bBIS
_c1976
999 _c49644
_d49644