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High efficiency snowthrower
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Patent number 4,897,942
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Issue date Feb 6, 1990
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Simplicity Manufacturing, Inc.
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Kenneth H. Klas
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Mower blade
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Patent number 4,426,831
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Issue date Jan 24, 1984
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Simplicity Manufacturing, Inc.
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Kenneth H. Klas
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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