Floor 专利名称：Floor 发明人：Waumans, André 申请号：EP92870147.3 申请日：19920915 公开号：EP0533646A1 公开日：19930324 专利内容由知识产权出版社提供 专利附图：摘要：Floor, more specifically sports floor, which contains a springy under-layer (2), a pressure dividing layer (3) lying thereon ...