000			00563nam a22002057a 4500
999			_c55428 _d55428
003			OSt
005			20190701151240.0
008			190227b ||||| |||| 00| 0 eng d
020			_a0 273 31669 9
040			_aOSt _bEnglish _cOSt _dOSt
082			_a621.815 / P317v
100			_aPearson, G. H. _9175393
245			_aValve Design : _bManually operated patterns / _cG H Pearson.
260			_aLondon : _bPitman, _cc 1972.
300			_a166 p. ; _c24 cm.
500			_aIncludes index.
508			_a313
650			_aApplied physics. _9175394
942			_2ddc _cBK