optical polymeric film for improving picture quality in liquid crystal displays, rear and front slide projection systems, signs and video systems; reflective signs; neon signs; focusing screens; color enhancement screens; screens for rear and front projection; depixilating screens; screens for use with 3-D projectors; 3-D projection and display systems comprised of projectors and projection screens; camera lenses; video camera lenses for incorporation into electronic equipment; and parts therefor

'3':43,46 'camera':58,61 'color':28 'compris':52 'crystal':10 'd':44,47 'depixil':37 'display':11,50 'electron':66 'enhanc':29 'equip':67 'film':3 'focus':26 'front':14,35 'improv':5 'incorpor':64 'lens':59,62 'liquid':9 'neon':24 'optic':1 'part':69 'pictur':6 'polymer':2 'project':16,36,48,56 'projector':45,54 'qualiti':7 'rear':12,33 'reflect':22 'screen':27,30,31,38,39,57 'sign':18,23,25 'slide':15 'system':17,21,51 'therefor':70 'use':41 'video':20,60

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