Full Title

Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic (ground installations for reducing aircraft noise B64F1/26; general building constructions for absorbing or reflecting noise, noise absorption or reflection for buildings E04B1/74) > specially adapted for sustaining vegetation or for accommodating plants (receptacles for cultivation of plants A01G9/02; securing slopes or inclines E02D17/20; retaining or protecting walls E02D29/02 )