ISO 1093:1981被替代
Adding Machines And Calculating Machines - Keytop And Printed Or Displayed Symbols
出版：International Organization for Standardization
专家解读视频
1981
BS 5478-3(1982) : 1982 - Identical
AS 1412.1-1976 - Identical
NFE 55 053 : 67 FD - Similar to
NS 4084 : 1983 - Identical
NFE 55 053 : 67 FD - Similar to
NS 4084 : 1983 - Identical
AS 1412.1-1976 - Identical
BS 5478-3(1982) : 1982 - Identical
NFE 55 053:1967 - Similar
NS 4084:1983 - Identical
BS 5478-3:1982 - Identical
AS 1412.1-1976 - Identical
