Tooth cleaning appts. for removing food residues from spaces between teeth - involves tooth floss tension device produced from solid material and comprises hand grip with U=shaped stirrup having arms and exchangeable cleaning component
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DEVICE FOR VISUALIZING OBJECT OR EPIDERMAL EMISSIONS BY ELECTROLUMINESCENCE VIDEOGRAPHY METHOD WITHOUT AND WITH A VACUUM CLEANER
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Circuit arrangement for generating mixed frequency signals
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Calorimetric measuring arrangement for the radiation characteristics of electromagnetic radiation sources
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Liq. crystal shutter for film camera or projector - is made opaque by LV application and replaces mechanically operating parts
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Liquid crystal shutter with electronic actuation - is placed in or behind objective in cameras and has transparent electrodes
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STEREO FIBER OPTICS AND STEREO FILM AND TELEVISION VIEWERS
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Stereo picture reproduction system - transmits image pulses from stereo camera to control spectacles with shutters of liquid quartz and glass sandwich separately controlled
