000 00358nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aIndian Standards Institution
245 _aSpecification for unified screw threads
260 _aNew Delhi
_c1953
300 _a0.666666667
440 _aIS-448; Indian Standards Inst
901 _a39963
942 _cB
_2udc
999 _c7573
_d7573