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Photovoltaic array with angular adjustment
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Patent number 8,513,584
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Issue date Aug 20, 2013
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Hewlett-Packard Development Company, L.P.
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Stephan R. Clark
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Flexible electrical substrate
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Patent number 8,138,412
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Issue date Mar 20, 2012
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Hewlett-Packard Development Company, L.P.
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Karl S Weibezahn
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Low frequency vibration assembly
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Patent number 5,154,567
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Issue date Oct 13, 1992
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Hughes Aircraft Company
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Richard L. Baker
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL