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Mode filter apparatus
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Patent number 4,238,747
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Issue date Dec 9, 1980
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The United States of America as represented by the Secretary of the Air Force
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Robert S. Harp
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H03 - BASIC ELECTRONIC CIRCUITRY
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Conical power combiner
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Patent number 4,188,590
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Issue date Feb 12, 1980
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Hughes Aircraft Company
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Robert S. Harp
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H03 - BASIC ELECTRONIC CIRCUITRY
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Coax-to-radial transition
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Patent number 3,942,130
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Issue date Mar 2, 1976
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Hughes Aircraft Company
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Robert S. Harp
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H01 - BASIC ELECTRIC ELEMENTS
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Microwave power accumulator
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Patent number 3,931,587
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Issue date Jan 6, 1976
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Hughes Aircraft Company
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Robert S. Harp
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H03 - BASIC ELECTRONIC CIRCUITRY