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Dimmable light generating device
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Patent number 8,304,998
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Issue date Nov 6, 2012
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Koninklijke Philips Electronics N.V.
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Harko Jan Taekema
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Circuit arrangement
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Patent number 7,196,478
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Issue date Mar 27, 2007
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Koninklike Philips Electronics, N.V.
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Jacob Dijkstra
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Speed control
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Patent number 6,445,156
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Issue date Sep 3, 2002
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Koninklijke Philips Electronics N.V.
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Harry Marinus
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER