DIN EN 60073:2003 Basic and safety principles for man-machine interface, marking and identification - Coding principles for indicators and actuators (IEC 60073:2002); German version EN 60073:2002
2003DIN EN 60073:2003 Basic and safety principles for man-machine interface, marking and identification - Coding principles for indicators and actuators (IEC 60073:2002); German version EN 60073:2002