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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 9309-1988 |
Office machines and data processing equipment--Functionkey symbols on typewriters 办公机器和数据处理设备 打字机功能键符号 |
China National Standards Office machines data |
 English PDF |
| GB/T 7188-1987 |
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 |
China National Standards Office machines data |
English PDF |
| GB/T 4872-1985 |
Office machines and data processing equipment--Principles governing the positioning of control keys on key-boards 办公机器和数据处理设备键盘上控制键定位的原则 |
China National Standards Office machines data |
English PDF |
| GB/T 3910-1983 |
Office machines and data processing equipments--Line spacings and character spacings 办公机器和数据处理设备 行间距和字符间距 |
China National Standards Office machines data |
English PDF |
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