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United States Utility Patents
5,047,680 - 5,047,689

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NumberTitle
5,047,680 Rotating electrical machine
5,047,681 Constant power synchronous motor with microprocessor control
5,047,682 Permanent magnet excited electric motor
5,047,683 Hybrid transducer
5,047,684 Mask support structure for tension mask color cathode ray tubes
5,047,685 Electrode structure for lithotripter
5,047,686 Single layer multi-color luminescent display
5,047,687 Organic electroluminescent device with stabilized cathode
5,047,688 Automobile interior light control system
5,047,689 Gas discharge tube, indirectly heated cathode for use therein and drive circuit therefor



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