72173568
Jul 23, 1963
Jul 7, 1964
FLUID FLOW-MIXING AND FLOW-GUIDING DEVICES-NAMELY, VACUUM PUMPS, ASPIRATORS, MIXING UNITS, INJECTORS AND PROJECTION NOZZLES FOR POWDER COATING EQUIPMENT, AND FLUID FLOW-MIXING AND FLOW-GUIDING CONDUITS FOR USE IN FUEL BURNERS, SONIC CLEANING EQUIPMENT, DRYING DEVICES, AND AIRCRAFT JET PROPULSION UNITS
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