MANUAL, AUTOMATIC, PNEUMATIC, ELECTRIC COMPARATORS; DATA REDUCTION DEVICES; PROCESS MEASURING AND CONTROL EQUIPMENT; SORTING DEVICES; RECORDERS; APPARATUS FOR MEASURING PROPORTION, LIQUID FLOW, LIQUID LEVEL, TEMPERATURE, PRESSURE, HARDNESS, TENSILE STRENGTH, DURABILITY, DENSITY, AND DISTANCE; AND TEST APPARATUS FOR CALIBRATING GAGING DEVICES

'apparatus':17,36 'automat':2 'calibr':38 'compar':5 'control':12 'data':6 'densiti':31 'devic':8,15,40 'distanc':33 'durabl':30 'electr':4 'equip':13 'flow':22 'gage':39 'hard':27 'level':24 'liquid':21,23 'manual':1 'measur':10,19 'pneumat':3 'pressur':26 'process':9 'proport':20 'record':16 'reduct':7 'sort':14 'strength':29 'temperatur':25 'tensil':28 'test':35

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