Test Consoles, Calibrators and Scale Drawing Machines for Electrical Indicating and Measuring Instruments: Electrical Instruments and Apparatus-Namely, Voltmeters, Potentiometers, Wattmeters, Ammeters, Galvanometers, Magnetic Testing Instruments, Voltage Multipliers, Voltage Dividers, Volt Ratio Boxes, Decade Boxes, and Wheatstone Bridges; Laboratory Standard Electrical Instruments-Namely, Standard Cells, Standard Magnets, Standard Resistors, Standard Shunts, Reference Standard Dynamometers and Moving Iron Instruments; Differential Measuring Instruments for Measuring the Difference Between Two Electrical Values-Namely, Comparators, Ratiometers

'ammet':23 'apparatus':18 'apparatus-nam':17 'box':34,36 'bridg':39 'calibr':3 'cell':47 'compar':74 'consol':2 'decad':35 'differ':67 'differenti':61 'divid':31 'draw':6 'dynamomet':56 'electr':9,14,42,70 'galvanomet':24 'indic':10 'instrument':13,15,27,44,60,63 'instruments-nam':43 'iron':59 'laboratori':40 'machin':7 'magnet':25,49 'measur':12,62,65 'move':58 'multipli':29 'name':19,45,73 'potentiomet':21 'ratio':33 'ratiomet':75 'refer':54 'resistor':51 'scale':5 'shunt':53 'standard':41,46,48,50,52,55 'test':1,26 'two':69 'valu':72 'values-nam':71 'volt':32 'voltag':28,30 'voltmet':20 'wattmet':22 'wheatston':38

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