发明名称 A LIGHT AND SOUNDPROOF COMPOSITE WALL PANEL
摘要 <p>The present invention relates to a light and soundproof composite wall panel comprising for example two surface layers (1), therebetween at least two reinforced panel layers (3), with a core layer (4). Among the foregoing layers, including semicircle or polygon grouting joints (2) formed on the panel.</p>
申请公布号 WO2005106149(A1) 申请公布日期 2005.11.10
申请号 WO2004CN00426 申请日期 2004.04.29
申请人 YAN, CHENGLIN 发明人 YAN, CHENGLIN;YANG, HUAIJUN
分类号 E04B1/86;E04B1/90;E04C2/288;E04C2/296;(IPC1-7):E04B1/90 主分类号 E04B1/86
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