Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 4: Guidelines and general information (IEC 34B/1885/CDV:2016); German version EN 60061-4:1992/prA16:2016
Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 4: Guidelines and general information (IEC 60061-4:1990 + supplements A:1992 to D:1995 + A5:1998 to A16:2018, modified); German version EN 60061-4:1992 + A1:1995 to A16:2018— 80 стр.
