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Frangible fan blade
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Patent number 6,146,099
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Issue date Nov 14, 2000
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United Technologies Corporation
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Robert H. Zipps
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Fan blade interplatform seal
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Patent number 5,957,658
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Issue date Sep 28, 1999
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United Technologies Corporation
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Robert F. Kasprow
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Frangible fan blade
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Patent number 5,836,744
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Issue date Nov 17, 1998
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United Technologies Corporation
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Robert H. Zipps
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Fan blade interplatform seal
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Patent number 5,820,338
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Issue date Oct 13, 1998
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United Technologies Corporation
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Robert F. Kasprow
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES