Home / Standards / GB/T 7188-1987 GB/T 7188-1987 Active Office machines and data processing equipment--Keyboard layouts for numeric applications 办公机器和数据处理设备数字应用的键盘布局 Standard Type GBT ICS 35.180 CCS L63 Status 现行 Issue Date 1987-01-19 Implementation 1987-10-01 Responsible Dept 国家标准委 Drafting Unit N/A