SIEVES; MESH FOR ELECTRON TUBES; MESH FOR PARTICLE SORTING EQUIPMENT; PIN HOLE SPERTURES FOR LIIGHT LEAK TESTING EQUIPMENT; CENTRIFUGE SCREENS (FOR PROCESSING SUGAR); SLIDE PROJECTOR GRIDS AND SCALES; ETCHED AND STAMPED LEAD FRAMES FOR ELECTRONIC EQUIPMENT INCLUDING CAMERAS, PHOTOCOPIERS AND AUTOMOTIVE TEST EQUIPMENT; ENCODERS FOR COMPUTERS, COPIERS, BIGBOARD ELECTRONIC CIRCUITS FOR COMPUTER DESIGN SYSTEMS; CATHODE RAY DEPTH SOUNDERS, CATHODE RAY FISH FINDERS; GRAPH RECORDER DEPTH SOUNDERS AND DIGITAL AND ANALOG DEPTH SOUNDERS; BUSBARS; FLEXIBLE CIRCUITS FOR ELECTRONIC ASSEMBLIES INCLUDING COMPUTERS; EYEGLASS FRAMES; EYEGLASS CASES;READING GLASSES, MAGNIFYING GLASSES, GLASS AND PLASTIC OPHTHALMIC LENSES; ADJUSTABLE DISPLAY FOR USE IN SELECTING EYEGLASS FRAMES AS A FUNCTION OF THE HEAD SHAPE, FACIAL FEATURES AND SKIN COLORATION OF THE INDIVIDUAL PATIENT; SAFETY EYEWEAR, NAMELY EYEGLASSES, EYEGLASS LENSES AND EYEGLASS FRAMES AND PARTS THEREOF; SUNGLASSES; EYEGLASS LENS BLANKS