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Intelligent power switcher
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Patent number 5,424,903
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Issue date Jun 13, 1995
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Tandy Corporation
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Paul T. Schreiber
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G06 - COMPUTING CALCULATING COUNTING
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Switchable bandpass filter
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Patent number 4,581,588
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Issue date Apr 8, 1986
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Tandy Corporation
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Paul T. Schreiber
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Computer graphics generator
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Patent number 4,503,429
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Issue date Mar 5, 1985
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Tandy Corporation
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Paul T. Schreiber
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Switchable bandpass filter
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Patent number 4,436,956
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Issue date Mar 13, 1984
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Tandy Corporation
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Paul T. Schreiber
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H04 - ELECTRIC COMMUNICATION TECHNIQUE