ELECTRONIC AMPLIFIERS, [ ELECTRICAL ALARMS AND ] ELECTRIC SIGNALLING DEVICES FOR USE IN CONNECTION WITH MANUAL, AUTOMATIC, PNEUMATIC, ELECTRIC, AND ELECTRONIC GAGING APPARATUS; DIMENSIONAL COMPARATORS; PROCESS MEASURING AND CONTROL EQUIPMENT; SORTING DEVICES; [ APPARATUS FOR MEASURING PROPORTION, LIQUID FLOW, LIQUID LEVEL, TEMPERATURE, PRESSURE, HARDNESS, TENSILE STRENGTH, DURABILITY, DENSITY AND DISTANCE ]

'alarm':4 'amplifi':2 'apparatus':21,31 'automat':15 'compar':23 'connect':12 'control':27 'densiti':45 'devic':8,30 'dimension':22 'distanc':47 'durabl':44 'electr':3,6,17 'electron':1,19 'equip':28 'flow':36 'gage':20 'hard':41 'level':38 'liquid':35,37 'manual':14 'measur':25,33 'pneumat':16 'pressur':40 'process':24 'proport':34 'signal':7 'sort':29 'strength':43 'temperatur':39 'tensil':42 'use':10

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