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
发布日期:
2007-12-31
交叉引用:ISO 1996-1:2003 ISO 1996-2:2007 ISO 3741:1999ISO 3744:1994ISO 3745:2003ISO 11201:1995ISO 11202:1995IEC 61672-1:2002IEC 61672-2:2003