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Current memory cell
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Patent number 5,296,752
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Issue date Mar 22, 1994
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U.S. Philips Corporation
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Dirk W. J. Groeneveld
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G11 - INFORMATION STORAGE
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Current-source arrangement
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Patent number 4,967,140
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Issue date Oct 30, 1990
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U.S. Philips Corporation
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Dirk W. J. Groeneveld
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G05 - CONTROLLING REGULATING
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Digital-to-analog converter
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Patent number 4,935,740
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Issue date Jun 19, 1990
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U.S. Philips Corporation
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Henrikus J. Schouwenhaars
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H03 - BASIC ELECTRONIC CIRCUITRY
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Current source arrangement
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Patent number 4,859,930
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Issue date Aug 22, 1989
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Hendrikus J. Schouwenaars
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H03 - BASIC ELECTRONIC CIRCUITRY