2010DIN EN ISO 81714-1:2010-11 Design of graphical symbols for use in the technical documentation of products - Part 1: Basic rules (ISO 81714-1:2010); German version EN ISO 81714-1:2010
2010DIN EN ISO 81714-1:2010 Design of graphical symbols for use in the technical documentation of products - Part 1: Basic rules (ISO 81714-1:2010); German version EN ISO 81714-1:2010
1970DIN EN ISO 81714-1 E:2008-07 Design of graphical symbols for use in product technical documentation Part 1: Basic specifications (draft)