Office machines and data processing equipment — Line spacings and character spacings
办公室机器和数据处理设备——行间距和字符间距

1979-07-01

办公机器和数据处理设备 行间距和字符间距
Office machines and data processing equipments--Line spacings and character spacings

1983-11-02

Office Machines and Business Forms Character and Line Spacing (FORMERLY X4.17-1976) (formerly ANSI X3.150-1986(R1997))
办公机器和商业表格字符和行距（原X4.17-1976）（原ANSI X3.150-1986（R1997））

1986-01-01