265145 Instruments and apparatus for measuring or checking electrical quantities n.e.c.

26514520 Instruments and apparatus for measuring or checking semiconductor wafers or devices 26514530 Instruments and apparatus, with a recording device, for measuring or checking electric gains (excluding gas, liquid or electricity supply or production meters) 26514555 Electronic instruments and apparatus, without a recording device, for measuring or checking electric gains (excluding gas, liquid or electricity supply or production meters) 26514559 Non-electronic instruments and apparatus, without a recording device, for measuring or checking electrical gains (excluding multimeters, voltmeters)