9 Optical apparatus and instruments, namely, spectacles, body-tubes for telescopes, lens-barrels, tripods for telescopes, periscopes, binoculars, reflectors for telescopes, prisms for optic purposes, telescopes, lenses for cameras, magnifying glasses, metallurgical microscopes, biological microscopes, polarizing microscopes, stereoscopes, lenses for microscopes; measuring or testing machines for use in the medical field, namely, tonometers, arterial blood pressure measuring apparatus, body-fat monitors; electric meters and electric magnetic meters and testers, namely, circuit testers, phase indicators, oscillographs, oscilloscopes, antenna parameter measuring apparatus, detectors, namely, false coin detectors, magnetic object detectors, ground detector, namely, electric leakage detectors, magnetometers, frequency meters, vacuum tube characteristic testers, watt hour meters, resistance measuring instruments, voltmeters, wavemeters, ammeters, wattmeters, oscillators, capacity measuring meters; electronic machines and apparatus, namely, calculating machines, Geiger counters, high frequency welders, cyclotrons, industrial x-ray machines and apparatus not for medical use, industrial betatrons not for medical use, magnetic prospecting machines, magnetic object detectors, shield cases for magnetic disks, seismic exploration machines and apparatus, hydrophone machines and apparatus, echo sounders, ultrasonic flaw detectors, ultrasonic sensors, electrostatic copying machines, electronic door closing systems, computers, electron microscopes, electronic desk calculators, hard disk drives, word processors, x-ray tubes not for medical use, photo-sensitive tubes, namely, phototubes, vacuum tubes, rectifier tubes, cathode ray tubes, electric discharge tubes other than for lighting, thermistors, diodes, transistors, integrated circuits, large scale integrated circuits, computer operating programs and computer operating systems; none of the aforementioned goods for use with the drilling of oil and gas