Electric components, namely, resistors and resistor networks, low value electric resistors, electric shunt resistors and electric current sensory resistors all used in electrical circuits, potentiometers, capacitors, plasma displays, surge arrestors, antennas, chokes, connectors, lighting and transient suppressors, crystal frequency timers, filters, transformers, electrical indicators, inductor coils, electrical and electronic networks involving both active and passive circuit elements for use in electronic equipment, electrical cables, printed circuit boards, amplifiers and direct and alternating electric power supply units for primary use in testing of electronic equipment and delay lines; oscillators; electronic light emitting diode and liquid crystal displays; electronic plasma display panels; thermistors; electrical strain gage transducers; stress analysis systems primarily comprised of transducers that utilize ultrasonic oscillations to test for stress and fatigue in metal and metal structures and transducers that utilize ultrasonic oscillations to treat and reduce stress and fatigue of metals and metal structures; semiconductor components, namely, semiconductor chips, transistors, diodes, voltage surge suppressors and rectifiers; diode arrays; thyristors; integrated circuits; low profile DC/DC converters; computer software for use in weighing systems for the purpose of monitoring weight in industrial processes; computer software for use in stress analysis of metals, ceramics, plastics, composites, wood, and other engineering materials