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Mixer
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Patent number 4,977,617
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Issue date Dec 11, 1990
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The Marconi Company Limited
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Rakesh Sharma
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H03 - BASIC ELECTRONIC CIRCUITRY
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Communication system
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Patent number 4,862,453
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Issue date Aug 29, 1989
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The Marconi Company Limited
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Barry G. West
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Wide band amplifiers
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Patent number 4,337,439
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Issue date Jun 29, 1982
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The Marconi Company Limited
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Boleslaw M. Sosin
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H03 - BASIC ELECTRONIC CIRCUITRY
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Power amplifiers
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Patent number 4,319,198
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Issue date Mar 9, 1982
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The Marconi Company Limited
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Boleslaw M. Sosin
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H03 - BASIC ELECTRONIC CIRCUITRY
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