Electronic test and measurement instruments, namely, oscilloscopes and parts therefor; electronic instruments in the nature of signal generators, namely, analog and vector signal generators, waveform generators, function generators in the nature of electronic devices used to generate various types of repeating waveform signals over a wide range of frequencies, pulse and data generators, arbitrary waveform generators, noise generators in the nature of electronic devices that produce random signals, and signal generation devices synthesizing electronic signals, and synchronization modules for various types of signal generators; electronic test and measurement instruments in the nature of analyzers, namely, spectrum, vector, signal, network, power and power source, protocol, radio frequency, microwave, logic, modulation-domain, optical component, light wave component, optical modulation, time-interval, polarization, and photonic dispersion and loss analyzers; automatic test equipment for integrated circuits, circuit boards and electronic equipment, namely, flat panel display testers, system on a chip (SOC) testers, memory testers, parametric testers, automated optical inspection testers, and in-circuit testers; electronic and optical communications instruments, namely, light wave testers and light wave multimeters; electronic component of digital multi-meters for testing and measuring voltage in electrical products; measuring instrumentation and apparatus, namely, digitizers; test and measurement equipment, namely, electromagnetic interference receivers, radio frequency interference receivers, and electromagnetic compliance products, namely, electromagnetic interference receivers for testing electromagnetic compliance and making conductive emission measurements; polarization controller units used to change light from any polarized or unpolarized light source into any well-defined state of polarization; electronic test and measurement instruments, namely, electric meters, inductance meters, capacitance meters, resistance meters, impedance meters, testing meters, wavelength meters, frequency meters, and frequency counters; electrical and electronic measuring and testing devices, namely, DC electronic load measurers and testers; electronic test and measurement instruments in the nature of testers, namely, cable, antenna, voltage, amperage, telephone line, and continuity testers; electronic test and measurement instruments, namely, handheld cable and antenna tester with optional spectrum analyzer, network analyzer, and power meter; electronic testing equipment, namely, power meters for testing radio frequency and microwave signals; electronic and optical communications instruments and components, namely, communication link testers for testing communication links and telecommunication line integrity testing apparatus; testing apparatus for testing circuit boards; electronic apparatus for testing electromagnetic properties and characteristics of industrial materials; electronic test and measurement instruments, namely, voltmeters and source measure units; test and measurement equipment, namely, one box testers containing a signal source and a signal analyzer for testing microwave and wireless communication devices and designs; electronic test and measurement instruments, namely, interferometers, electrical transducers, and vibration transducers; electronic test and measurement instruments, namely, nano indenters for nanomechanical testing of semiconductors, thin films, wafer applications, hard coatings and DLC films, composite materials, fibers, polymers, metals, ceramics, and biomaterials; component features of electronic testing, signaling, diagnostic and measurement systems and equipment used in signal generators, signal analyzers, arbitrary waveform generators, pulse generators, and one-box testers, namely, mobile cellular and wireless local area network (WLAN) testers and network analyzers; electronic component in the nature of downloadable software and hardware, namely, digital signal processor and its controlling algorithm, sold as integral components of waveform generators, for improving signal fidelity and signal breadth; encoders; data processing equipment, namely, couplers; amplifiers; electrical signal attenuators; electricity limiters; multipliers; testing apparatus for testing fiber optics; electric switches; electronic switches; optical switches; probes for testing integrated circuits, semiconductors, and telecommunication networks; electronic, opto-electronic, photonic, and nano-scale test, signaling, imaging, and measurement apparatus and instruments, namely, amplifiers, attenuators, filters in the nature of signal processors that function to remove unwanted frequency components from the signal, to enhance wanted ones, or both, conditioners in the nature of devices used to prepare sensor output signals for processing, converters, mixers in the nature of devices for creating new frequencies from two or more signals applied to it, modulators in the nature of devices for varying one or more properties of a periodic waveform in order to carry a signal, demodulators, prescalers, dividers in the nature of devices for coupling a portion of the signal in a transmission line to a port enabling the portion signal to be used in another circuit, combiners in the nature of devices for combining the signals at a port into the signals already present in a transmission line, isolators in the nature of a non-reciprocal 2 port device that allows signals to pass in one direction only, circulators in the nature of a non-reciprocal multi-port device in which a signal entering any port is transmitted only to the next port in rotation, integrated diode limiters, switches and routers for performing signal generation, signal processing, signal amplification, signal conversion, and signal control; lasers for measuring purposes and accessories therefor, namely, monolithic laser combiners, laser heads, beam splitters, beam benders, beam translators, retro reflectors, adjustable mounts, plane mirrors, plane mirror converters, plane mirror reflectors, and turning mirrors; lasers not for medical use; microscopes; microscopes, namely, atomic force microscopes; microscopes, namely, scanning electron microscopes; recording apparatus for recording traffic on telecommunications networks; portable electronic recorder for measuring and recording multiple voltage, current and thermocouple readings from various transducers; electric sensors; industrial calibration sensors; optical sensors; timing sensors; ultrasonic sensors; surface acoustic wave sensors; sensors for measuring air pressure, temperature, and humidity; sensors for monitoring the temperature of an object being measured; transmitters of electronic signals; electronic and optical communications instruments and components, namely, optical transmitters and electro-optical transmitters; wireless transmitters and receivers; receivers of electronic signals; electronic and optical communications instruments and components, namely, optical and opto-electrical receivers; remote controls for electronic test, signaling and measurement apparatus, systems, and equipment; computer hardware; computer peripherals; a full line of recorded operating system software programs for non-medical scientific instruments and for electronic test, signaling, and measurement instruments and equipment; a full line of recorded computer software for designing, configuring, calibrating, and testing non-medical scientific instruments and electronic test, signaling, and measurement instruments and equipment; a full line of recorded computer software for collecting, measuring, analyzing, storing, manipulating, and managing data obtained from non-medical scientific instruments and from electronic test, signaling, and measurement instruments and equipment; downloadable software, namely, electronic design automation (EDA) software for communications product design, for RF and microwave circuit, high-speed, signal integrity, device modeling, and signal-processing design, and for electro-thermal, electromagnetic, circuit and system design and simulation; data processing apparatus; power supplies; power supplies and power systems used to power and test the operation of electronic equipment and devices under test by providing multiple power levels to the electronic equipment; programmable power supplies and power systems for simulating various operating conditions of electronic equipment