OM OPTICS AND METROLOGY

OPTICAL AND ELECTRO-OPTICAL SYSTEMS AND INSTRUMENTS; SYSTEMS AND INSTRUMENTS FOR MANUFACTURING, INSPECTION, AND QUALITY CONTROL COMPRISING A COMPLETE LINE OF ALIGNMENT INSTRUMENTS AND ACCESSORIES; THEODOLITES; AND SPECIAL THEODOLITES; ANTENNA CONTOUR CHECKING SYSTEMS AND INSTRUMENTS; CONTOUR PROBING SYSTEMS AND INSTRUMENTS; SPACE AND MISSILES GUIDANCE AND CONTROL SYSTEMS AND INSTRUMENTS; COLLIMATION TEST INSTRUMENTS; DEVIATORS; BORESCOPES; ELECTRONIC AUTO-COLLIMATORS; VISUAL AUTO-COLLIMATORS; TELESCOPES; ALIGNMENT TELESCOPES; OPTICAL SQUARES; TRANSITS; LEVELING INSTRUMENTS; ELECTRONIC LEVELING SYSTEMS AND INSTRUMENTS; GRAVITY REFERENCE INSTRUMENTS; STRIDING LEVELS; GRATINGS; TARGETS AND SPECIAL SCALES; AND ACCESSORIES