GB/T 9309-1988
AbolishedOffice 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
Application Summary AI generated
This standard specifies the graphical symbols used for function keys on typewriters, covering both manual and electric models. It is applied in the design and labeling of office machines and data processing equipment to ensure consistent key identification across manufacturers. The standard facilitates user training and operational efficiency in office environments where typing equipment is used.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.