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Wheel trolley design
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Patent number D319131
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Issue date Aug 13, 1991
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Quickwheel Holdings, B.V.
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Jan Smeitink
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D34 - Material or article handling equipment
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Wheel trolley
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Patent number 5,039,123
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Issue date Aug 13, 1991
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Quickwheel Holdings, B.V.
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Jan Smeitink
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B66 - HOISTING LIFTING HAULING
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Wheel trolley
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Patent number 4,913,459
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Issue date Apr 3, 1990
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Quickwheel Holding, B.V.
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Jan Smeitink
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B66 - HOISTING LIFTING HAULING