DIN EN 60061-4:1997-01
Отменен
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, B:1994, C:1994 and D:1995 modified); German version EN 60061-4:1992 + A1:1995 + A2:1995 + A3:1995
— 43 стр.