
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, D:1995 + A5:1998 to A9:2004, modified); German version EN 60061-4:1992 + A1:1995 to A9:2005
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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