ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHU..SK................JDIM350 (Ver 2.1 Jan 2001) 1620000/01357237EUROPEAN PATENT APPLICATIONA320040128EP03009072.420030418EnEnEnBO2002021620020422IT20040128200405200310292003447 7E 04B 1/86 AdeLärm absorbierendes Paneel und entsprechendes HerstellungsverfahrenenSound absorbent panel and related manufacturing methodfrPanneau absorbant le bruit et méthode de fabrication correspondante1PREAM S.R.L.04411870P34.EP.1.04Via Flaminia, 4661030 Montefelcino (Pesaro-Urbino)ITMorelli, Giuseppe, c/o PREAM S.R.L.Via Flaminia, 4661030 Montefelcino (Pesaro-Urbino)ITNegrini, Elena00156093Agazzani & Associati S.r.l. Via dell'Angelo Custode 11/640141 BolognaITATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEITLILUMCNLPTROSESISKTRALLTLVMK20040128200405

A sound absorbent panel includes at least two facing plates (2), each of which provided with a plurality of parallel grooves first (5) and second (6), carried out on opposite faces respectively first (3) and second (4) of each plate (2).