Assistive products for persons with vision impairments and persons with vision and hearing impairments. Acoustic and tactile signals for pedestrian traffic lights
视力障碍者和视力及听力障碍者的辅助产品 行人交通信号灯的声学和触觉信号
2007-12-31
BS 06/30134435 DC
ISO 23600. Assistive products for persons with vision impairments and persons with vision and hearing impairments. Acoustic and tactile signals for pedestrian traffic lights
ISO 23600 视力障碍者和视力及听力障碍者的辅助产品 行人交通信号灯的声学和触觉信号