FEDERAL

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