发明名称 Parquet floor elements and parquet floor composed of such elements
摘要 A parquet floor element is disclosed which comprises a facing layer defined by edges forming a closed contour, a backing panel of indented peripheral shape, and means for fixing the facing layer to the backing panel, the latter being associated with the facing layer in such a manner that the said teeth partly project relative to the edges of the facing layer, the intervals between the teeth in part receding relative to the said edges with a regular sequence, along the whole of the contour of the facing layer, of teeth projecting relative to the said edges and intervals between the teeth receding relative to the said edges.
申请公布号 US4090338(A) 申请公布日期 1978.05.23
申请号 US19760749969 申请日期 1976.12.13
申请人 B 3 L 发明人 BOURGADE, PIERRE
分类号 E04F15/022;E04F15/04;(IPC1-7):E04F13/08;E04C1/30 主分类号 E04F15/022
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