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Earth Turbines, Inc.
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Williston, VT, US
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Patents Grants
last 30 patents
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Patent Grant
Direct drive induction electrical power generator
Patent number
7,633,176
Issue date
Dec 15, 2009
Earth Turbines, Inc.
David C. Blittersdorf
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...