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Mobile hammer-mill
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Patent number 4,272,946
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Issue date Jun 16, 1981
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Jack Maher
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Mobile chaff-cutter
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Patent number 4,257,215
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Issue date Mar 24, 1981
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Jack Maher
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Hay conditioner
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Patent number 4,254,605
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Issue date Mar 10, 1981
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Jack Maher
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING