000 00287nam a2200133Ia 4500
100 _aMachinery
942 _cBK
654 _aThread book
245 _aScrew Thread Book
260 _bMachinery Publication & co
_aLondon
_c1972
082 _a621.8
300 _a292
546 _aENGLISH
999 _c18949
_d18949