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Coil spring for overrunning spring clutches
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Patent number 5,749,449
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Issue date May 12, 1998
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Sikorsky Aircraft Corporation
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Hugh L. Kearney
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Retractable helicopter rotor
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Patent number 5,149,013
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Issue date Sep 22, 1992
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United Technologies Corporation
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Ralph D. Costanzo
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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External wrap of composite flexbeam
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Patent number 4,898,515
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Issue date Feb 6, 1990
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United Technologies Corporation
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Edward A. Beno
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Lobed composite flexbeam
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Patent number 4,746,272
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Issue date May 24, 1988
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United Technologies Corporation
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William L. Noehren
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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