73174435
Jun 14, 1978
Feb 26, 1980
PROFESSIONAL PHOTOGRAPHIC APPARATUS-NAMELY, SPECIAL EFFECT DEVICES AND SUPPORT EQUIPMENT COMPRISING MONTAGERS VIGNETTERS, NEUTRAL DENSITY FILTERS, GRADUAL COLOR FILTERS, BICOLOR FILTERS, MULTICOLOR FILTERS, VARIABLE COLOR FILTERS, FOG FILTERS, RAINBOW COLORED BURSTS, CROSS STAR FILTERS, VARIABLE CROSS STAR FILTERS, REDUCED CONTRAST FILTERS, DIFFUSERS, VARIABLE DIFFUSERS, POLARIZERS, SPLIT FIELD LENS, CLOSE UP DIOPTERS, WARMING FILTERS, TUBE SPACERS, MULTIIMAGE LENS, VARIABLE FACE PRISM LENS, ZOOM CLOSE UP LENS, ROTATING LENS MOUNTS, AND ADAPTORS FOR UNIVERSAL ATTACHMENT
Electrical and Scientific Apparatus