NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Standards
[Withdrawn]
DIN 41097-4
DIN 41097-4
Steel-tube support for electrical sirens 125 to 500 V∼; skylight
Title (German)
Rohrständer für elektrische Sirenen, 125 bis 500 V∼; Dachluke