PRECISION MECHANICAL, PHOTOTECHNICAL AND OPTICAL INSTRUMENTS, EQUIPMENT AND PLANTS AS WELL AS COMPONENT PARTS THEREOF-NAMELY, RANGE FINDERS, LENS CARRIERS, HOUSINGS, OBJECTIVES, DIAPHRAGMS, SHUTTRS; ENLARGERS; REPRODUCING APPARATUS, VIEWING APPARATUS; SHORTRANGE FOCUSING APPARATUS; PHOTOGRAPHIC CAMERAS; FILM CAMERAS AND PROJECTORS; STEREOSCOPIC CAMERAS; CAMERAS AND PROJECTORS FOR THEREE-DIMENTSIONAL PICTURES; PROJECTORS; STEREOSCOPIC PROJECTORS; SINGLE AND DOUBLE LENGTH TELESCOPES; MAGHIFYING...