发明名称 Building Wall Panels of Hollow Core Construction
摘要 Building wall panels having lightweight hollow core interiors include embodiments suitable for interior and exterior walls, for industrial, commercial or residential buildings, and for multi-story structures. Various methods for making these wall panels are disclosed, including the formation of cast gypsum firewall layers.
申请公布号 US2009038262(A1) 申请公布日期 2009.02.12
申请号 US20070835516 申请日期 2007.08.08
申请人 MARSCHKE CARL R 发明人 MARSCHKE CARL R.
分类号 E04C2/36 主分类号 E04C2/36
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