| 摘要 |
<p>Floor element (1) of solid wood, in the form of rectangular outline parquet floor or floor board, having on one pair of adjacent connecting sides longitudinal dados (2) in the form of grooves, while on a second pair of adjacent connecting sides longitudinal splines (3) in the form of tongues corresponding to the dados (2). There being on the bottom surface of said floor element (1), on its whole width and transverse to its length, incisions (4) in the form of grooves whose depth reaches at least to the lower edges, and at most to the upper edges of the dados (2) and of the splines (3), the edges of the dados (2) and of the splines (3) being parallel to the top surface of the floor element (1).</p> |
