00761nam0-22002651i-450-99000399099040332120040114135845.0000399099FED01000399099(Aleph)000399099FED0100039909920040109d--------km-y0itay50------baengHigh-efficiency air filtrationWhite P.A. F. , Smith S.E.LondonButterworths1964condizionamento dell'aria304.2White,Percival Albert Frederick<1916- >75814ITUNINARICAUNIMARCBK99000399099040332100 E14822712DETECDETECHigh-efficiency air filtration474565UNINA