NF X05-050:2000 Graphical symbols. Identification of services and products open to all persons with difficulties in spatio-temporal location and in reading learning. Welcoming, help assistant and accessibility symbol.
2000NF X05-050:2000 Graphical symbols. Identification of services and products open to all persons with difficulties in spatio-temporal location and in reading learning. Welcoming, help assistant and accessibility symbol.