ELECTRICAL MEASURING INSTRUMENTS AND STANDARDS AND PARTS THEREOF-NAMELY, [ POTENTIOMETERS;] BRIDGES FOR MEASUREMENT OF RESISTANCE, CAPACITANCE, INDUCTANCE TEMPERATURE; [ GALVANOMETERS; PHOTOCELL GALVANOMETER AMPLIFIERS; ] STANDARDS OF VOLTAGE AND RESISTANCE, FOR STANDARDS LABORATORIES; CONSTANT TEMPERATURE OIL BATHS AND AIR BATHS; [ TRANSFORMER CALIBRATION EQUIPMENT; AND SPECIAL PURPOSE PRESS BUTTON AND ROTARY SWITCHES FOR USE WITH THE AFOREMENTIONED PRODUCTS]

'aforement':54 'air':37 'amplifi':23 'bath':35,38 'bridg':12 'button':46 'calibr':40 'capacit':17 'constant':32 'electr':1 'equip':41 'galvanomet':20,22 'induct':18 'instrument':3 'laboratori':31 'measur':2,14 'name':10 'oil':34 'part':7 'photocel':21 'potentiomet':11 'press':45 'product':55 'purpos':44 'resist':16,28 'rotari':48 'special':43 'standard':5,24,30 'switch':49 'temperatur':19,33 'thereof':9 'thereof-nam':8 'transform':39 'use':51 'voltag':26

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