NF

(Based on Use in Commerce) (Based on 44(e)) Electronic instruments in the nature of signal generators, function generators, arbitrary waveform generators, oscillators, LCR meters, capacitance meters, resistance measuring instruments, test fixtures, test leads, Impedance meters, AC noise meters, frequency response analyzers, lock-in amplifiers, preamplifiers, differential amplifiers, filters for electric signal, variable cut-off frequency filters for electric signal, programmable filters for electrical signal, signal conditioners, acoustic emission measuring apparatus, acoustic emission sensors, preamplifiers for acoustic emission, discriminator for acoustic emission, electrical power supplies, AC power supplies, DC power supplies, power amplifiers, bipolar power supplies, electric power converters, AC/DC power converters, DC./AC power converters, filter modules for electric signal, low-pass filter modules for electrical signal, high-pass filter modules for electrical signal, band-pass filter modules for electrical signal, band elimination filter modules for electrical signal, variable cut-off filter modules for electrical signal, resister tunable filter modules for electrical signal, voltage tunable filter modules for electrical signal, programmable filter modules for electrical signal, amplifier modules, I-V converter modules, oscillator modules, resister tunable oscillator modules, phase detector modules, phase sifter modules, filter units for signal conditioner (Based on 44(e)) clock generators for digital circuits, logic signal generators, oscilloscopes, probes for oscilloscope, digital multimeters, voltmeters, DC voltmeters, Ammeters, DC ammeters, AC ammeters, light choppers, isolation amplifiers, amplifier units for signal conditioner, signal processing/analyzing measurement apparatus, data recorders, programmable electronic loads, programmable DC electronic loads, programmable AC electronic loads, bidirectional power converters, electric accumulators, electrical storage batteries, protection relay testing systems comprised of voltage protection relay testers, current protection relay testers, protection relay testing controllers and automatic protection relay testing software, V-I converter modules, programmable gain amplifier modules