Crystalline synthetic quartz used in piezoelectric devices for optical apparatus and devices, measuring or testing machines and instruments, electric or magnetic meters and testers, telecommunication machines and apparatus and electronic machines and apparatus; synthetic quartz processed in the form of wafers used in piezoelectric devices for optical apparatus and devices, measuring or testing machines and instruments, electric or magnetic meters and testers, telecommunication machines and apparatus and electronic machines and apparatus; crystal sensors and electronic circuit devices using crystal sensors; piezoelectric crystal oscillators; piezoelectric crystal units, namely, tuning fork crystal units, megahertz range crystal units; AT Crystal units and surface acoustic wave resonators; telecommunications machines and apparatus, namely, AT cut crystal resonators; piezoelectric crystal filters; atomic oscillators; optical glass; optical apparatus and instruments, namely, optical devices in the nature of optical filters, optical wave plates, dichroic optical prisms, trichroic optical prisms, polarized beam splitter prisms, p-polarized and s-polarized Converters, and Cross Prisms for liquid crystal display projectors, video projectors, liquid crystal on silicon projectors, light emitting diode projectors and cathode ray tube projectors, optical pickups, namely, read heads for optical drives, optical mirrors, optical frequency metrology plates, optical gratings utilizing a periodic variation of the refractive index on optical glass used in optical pickups for tracking servo systems and spectral analyzer as dispersion elements; optical apparatus and instruments, namely, optical low pass filters, heat sinkplates for liquid crystal display projectors, video projectors, liquid crystal on silicon projectors, light emitting diode projectors and cathode ray tube projectors, and etalon optical filters; Electronic machines and apparatus, namely, oscillators, namely, Temperature Compensated Crystal Oscillator, Voltage Controlled Crystal Oscillator, Oven Controlled Crystal Oscillator, programmable oscillators, clock oscillators, and atomic oscillators, namely, Rubidium oscillators; Electronic machines and apparatus, namely, crystal units and resonators, namely, tuning fork crystal resonators and AT Cut crystal resonators; Electronic machines and apparatus, namely, Surface Acoustic Wave devices, namely, Surface Acoustic Wave resonators, and Surface Acoustic Wave filters; Electronic machines and apparatus, namely, crystal filters, namely, monolithic crystal resonator filters; Electronic machines and apparatus, namely, electronic components and passive electronic components, namely, synthetic quartz crystals, lumbered quartz crystals, and crystal blanks, crystalline synthetic quartz used in piezoelectric devices for optical apparatus and devices, measuring or testing machines and instruments, piezoelectric oscillators, piezoelectric crystal units and piezoelectric filters; Electronic machines and apparatus, namely, synthetic quartz processed in the form of wafers used in piezoelectric devices for optical apparatus and devices, measuring or testing machines and instruments, piezoelectric oscillators, piezoelectric crystal units and piezoelectric filters