OPTICAL FORM GAUGING AND MEASURING APPARATUS FOR THE INSPECTION OF HELICAL SCREW FORMS OR PROFILE FORM CUTTERS

OPTICAL FORM GAUGING AND MEASURING APPARATUS FOR THE INSPECTION OF HELICAL SCREW FORMS OR PROFILE FORM CUTTERS

OPTICAL FORM GAUGING AND MEASURING APPARATUS FOR THE INSPECTION OF HELICAL SCREW FORMS OR PROFILE FORM CUTTERS

MACHINE TOOLS FOR THE MANUFACTURE OF HELICAL SCREW FORMS AND OF HELICAL SCREW ROTORS FOR COMPRESSORS, PUMPS OR GEARS; MACHINE TOOLS FOR THE PROFILE GRINDING OF CUTTERS FOR USE IN THE MANUFACTURE OF HELICAL SCREW FORMS; HELICAL SCREW ROTORS BEING PARTS OF COMPRESSORS, PUMPS OR GEARS, AND OPTICAL FORM GAUGING