发明名称 Method of making building boards having predetermined size and precise dimensions
摘要 A method is provided for cutting a slab of gypsum board in two sections using a single cord in either the longitudinal direction or lateral direction. The cord is fixed at one edge and is placed between the gypsum and a liner sheet coextensively adhered to the board surface. By pulling the cord away, the board is cut into two sections of predetermined sizes and precise dimensions.
申请公布号 US2011247742(A1) 申请公布日期 2011.10.13
申请号 US20100798740 申请日期 2010.04.12
申请人 HALPERT HENRY 发明人 HALPERT HENRY
分类号 B32B37/14 主分类号 B32B37/14
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