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Volumetric accumulating device
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Patent number 4,031,857
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Issue date Jun 28, 1977
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Intraco, Inc.
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Robert D. Jones
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Hopper screening apparatus
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Patent number 3,971,714
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Issue date Jul 27, 1976
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Intraco, Inc.
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Robert D. Jones
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Feeding trough
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Patent number 3,962,996
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Issue date Jun 15, 1976
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Intraco, Inc.
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Robert D. Jones
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING