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Battery-powered electrical device
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Patent number 5,883,498
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Issue date Mar 16, 1999
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U.S. Philips Corporation
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Johann R. G. C. M. Van Beek
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Apparatus for charging a battery
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Patent number 5,694,018
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Issue date Dec 2, 1997
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U.S. Philips Corporation
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Eduard E. A. Gillissen
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Apparatus for recharging a battery
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Patent number 5,680,029
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Issue date Oct 21, 1997
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U.S. Philips Corporation
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Wilhelmus J. M. Smits
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Battery recharging apparatus
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Patent number 5,640,077
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Issue date Jun 17, 1997
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U.S. Philips Corporation
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Eduard E. A. Gillissen
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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