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Sectored disc for opener
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Patent number 7,810,580
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Issue date Oct 12, 2010
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Guy J. Swanson
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Debris and soil shaver
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Patent number 4,781,129
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Issue date Nov 1, 1988
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Swanson Spray and Manufacturing, Inc.
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Morton C. Swanson
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Agricultural tool carrier
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Patent number 4,333,534
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Issue date Jun 8, 1982
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Guy J. Swanson
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING