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Stable vortex generating device
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Patent number 4,241,877
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Issue date Dec 30, 1980
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Hughes Sciences Group, Inc.
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Nathaniel Hughes
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Vortex generating device
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Patent number 4,240,293
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Issue date Dec 23, 1980
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Hughes Sciences Group, Inc.
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Nathaniel Hughes
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Vortex generating device with resonator
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Patent number 4,190,203
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Issue date Feb 26, 1980
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Hughes Sciences Group, Inc.
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Nathaniel Hughes
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B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...