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Variable speed wind turbine
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Patent number 4,695,736
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Issue date Sep 22, 1987
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United Technologies Corporation
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Glidden S. Doman
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Predicted motion wind turbine tower damping
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Patent number 4,435,647
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Issue date Mar 6, 1984
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United Technologies Corporation
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Kermit I. Harner
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Multi-mode control system for wind turbines
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Patent number 4,193,005
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Issue date Mar 11, 1980
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United Technologies Corporation
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Joseph M. Kos
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Wind turbine generator pitch control system
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Patent number 4,160,170
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Issue date Jul 3, 1979
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United Technologies Corporation
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Kermit I. Harner
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...