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Modular power drive wheelchair
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Patent number 5,156,226
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Issue date Oct 20, 1992
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Everest & Jennings, Inc.
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Ronald G. Boyer
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Modular power drive wheelchair
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Patent number 4,967,864
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Issue date Nov 6, 1990
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Everest & Jennings, Inc.
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Ronald G. Boyer
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Fertilizer spreader
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Patent number 4,474,327
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Issue date Oct 2, 1984
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Allegretti & Company
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Charles A. Mattson
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Edger
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Patent number 4,463,544
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Issue date Aug 7, 1984
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Allegretti & Company
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Anthony Carsello
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Fertilizer spreader
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Patent number 4,387,852
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Issue date Jun 14, 1983
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Allegretti & Co.
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Charles A. Mattson
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Snow thrower
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Patent number 4,346,526
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Issue date Aug 31, 1982
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Allegretti & Company
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Charles A. Mattson
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES