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DYNAMIC BALANCING MACHINES; TIME MEASURING SWITCHES; MEASURING APPARATUS, MACHINES AND INSTRUMENTS FOR MEASURING LENGTH, ANGLE, TENSION, STRESS AND STRAIN, VOLUME, WEIGHT, LIQUID AND GAS LEVEL, PRESSURE, LIGHT INTENSITY, HEAT, SPEED AND ACCELERATION-NAMELY, CALIPERS AND PARTS THEREFOR, CALIPER GAUGES, THICKNESS GAUGES, HOLE GAUGES, MICROMETERS, PLANIMETERS, DIAL INDICATORS, SEXTANTS, TENSIOMETERS, GAS METERS, WEIGHING MACHINES, MANOMETERS, VOLTMETERS, PHOTOMETERS, ACTINOMETERS, EXPOSURE METER...
Expired · January 13, 1955 · 71679836 ·