9030: oscilloscope/spectrum analysers & other inst; inst & app for mea ioni

903010: Instruments & apparatus for measuring or detecting ionising radiation 903020: Cathode-ray oscilloscopes and cathoderay oscillographs 903031: Multimeters 903039: Inst & app, for measurg or checkg voltage, current, etc w/o a record 903040: Instruments & apparatus, specially designed for telecommunications ne 903082: Instruments and Apparatus For Measuring or Checking Semiconductor Wafers 903083: Instruments and Appliances For Measuring or Checking Electrical Quantities, 903089: Instruments & apparatus for measurg or checkg electrical quantities n 903090: Parts & access for inst & app for meas or checkg electrical quantitie 9030: oscilloscope/spectrum analysers & other inst; inst & app for mea ioni