U.S. federal trademark · Serial No. 73068002 · Reg. No. 1057439
AUDIO-VISUAL PROJECTION UNITS COMPRISING PROJECTORS, VIEWING SCREENS, AUDIO AMPLIFIERS AND AUTOMATIC LAMP CHANGERS, AND COMPONENTS AND ACCESSORIES THEREFOR-NAMELY, INTEGRAL AUDIO SYNCHRONIZERS, SCREEN ATTACHMENTS FOR SHOWING MIXED HORIZONTAL AND VERTICAL SLIDES, JACKS FOR EXTERNAL SPEAKERS, PROJECTION LENSES AND FRONT PROJECTION ATTACHMENTS
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