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Current amplifier arrangement
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Patent number 5,140,282
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Issue date Aug 18, 1992
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U.S. Philips Corporation
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Job F. P. van Mil
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H03 - BASIC ELECTRONIC CIRCUITRY
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Electric signal amplifiers
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Patent number 4,721,922
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Issue date Jan 26, 1988
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GEC Avionics Limited
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Martin W. Redfern
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H03 - BASIC ELECTRONIC CIRCUITRY
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Audio amplifier
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Patent number 4,483,016
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Issue date Nov 13, 1984
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Peter A. Hochstein
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H03 - BASIC ELECTRONIC CIRCUITRY
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Power amplifier
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Patent number 4,401,954
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Issue date Aug 30, 1983
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Sony Corporation
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Tadao Suzuki
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H03 - BASIC ELECTRONIC CIRCUITRY
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Push-pull amplifier
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Patent number 3,997,849
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Issue date Dec 14, 1976
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U.S. Philips Corporation
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Werner Felix Thommen
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H04 - ELECTRIC COMMUNICATION TECHNIQUE