发明名称 PANEL FORMING
摘要 Building panels, especially laminated floor panels are shown, which are provided with a locking system and several core grooves at the rear side in order to save material and decrease weight.
申请公布号 US2014000197(A1) 申请公布日期 2014.01.02
申请号 US201313932406 申请日期 2013.07.01
申请人 VALINGE FLOORING TECHNOLOGY AB 发明人 PERVAN DARKO
分类号 E04C2/24 主分类号 E04C2/24
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