000 00493nam a2200181Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a621.326021
_bIS:418-1963
110 _aIndian Standards Institution
245 _aSpecification for tungsten filament general service electric lamps
250 _a2nd rev
260 _aNew Delhi
_bISI
_c1963
300 _a24p.
650 _aIncandescent lighting
650 _aStandards
942 _cBK
999 _c81652
_d81652