Floor covering comprises box-shaped tiles with tongues on two adjoining sides which fit into recesses on adjoining slabs with leaf springs projecting from openings in slab walls below tongues

摘要

The floor covering comprises tiles in the form of a box with tongues (7, 8) on two adjoining sides which fit into recesses (11, 12) on adjoining slabs. Leaf springs (15) project from openings (18) in the slab walls (17) below the tongues.