000			00391nam a2200145Ia 4500
082			_a620.1 _bHIB
100			_aHill, Donald R. _972375
245			_aThe book of knowledge of ingenious mechanical devices _cDonald R.Hill
260			_aIslamabad _bPHC, _c1989.
300			_bxxxix, 285p.
500			_aIncludes index
546			_aEng.
650			_aMechanical engineering _972376
942			_cBK
999			_c20966 _d20966