Lamp caps and holders together with gauges for the control of interchangeability and safety -- Part 2: Lampholders (IEC 60061-2:1969 + supplements A:1970 to S:1997 + A18:1998 to A50:2015, modified) (english version)
Lamp caps and holders together with gauges for the control of interchangeability and safety -- Part 2: Lampholders (IEC 60061-2:1969 + Ergänzungen A:1970 bis S:1997 + A18:1998 bis A54:2018, modifiziert) (english version)
Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 2: Lampholders (IEC 60061-2:1969 + supplements A:1970 to S:1997 + A18:1998 to A43:2011, modified) (english version)
Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 2: Lampholders (IEC 60061-2:1969 + supplements A:1970 to S:1997 + A18:1998 to A43:2011, modified) (english version)
Lamp caps and holders together with gauges for the control of interchangeability and safety -- Part 2: Lampholders (IEC 60061-2:1969 + Ergänzungen A:1970 bis S:1997 + A18:1998 bis A54:2018, modifiziert) (english version)