PHYSICAL AND OPTICAL INSTRUMENTS, NAMELY, SCALES, SIGNALERS, CONTROLLERS, CAMERAS AND PARTS THEREOF; MEASURING INSTRUMENTS, NAMELY, ELECTRICAL AND HYDRAULIC DYNAMOMETERS; PRESSURE METERS; PRESSURE DISTRIBUTORS; PRESSURE CELLS AND PRESSURE-DISTRIBUTION CELLS; PRESSURE GAUGES, MANOMETERS; MATERIAL-TESTING MACHINES FOR DETERMINING THE PHYSICAL QUALITIES OF METAL, SYNTHETIC PLASTICS MATERIAL AND ELASTOMER, AND ELECTRICAL MEASURING MACHINES FOR MEASURING FORCE, PRESSURE, DISPLACEMENT AND MASS

Machines and Apparatus for Testing the Hardness, Expansion, Thickness, Tensile Strength, Cupping, Drawing and Bending Power of Metallic Materials; Machines and Apparatus for Testing the Hardness, Expansion, Thickness, Swelling, Flow, Porosity, Viscosity, Tensile Strength, Heat Resistance, Melting Point, Weather and Wear Resistance, Elongation, Drying Time, Gloss, Color, Fineness of Grind, Opacity, Adhesion and Abrasion, of Non-Metallic and/or Synthetic Materials; and Pressure Meters