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Dual rotor spreader system
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Patent number 11,490,561
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Issue date Nov 8, 2022
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OMS Investments, Inc.
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Paul E. Hsu
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Spreader
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Patent number D956827
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Issue date Jul 5, 2022
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OMS Investments, Inc.
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Paul E. Hsu
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D15 - Machines not elsewhere specified
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Spreader
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Patent number D936109
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Issue date Nov 16, 2021
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OMS Investments, Inc.
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Paul E. Hsu
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D15 - Machines not elsewhere specified
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Spreader
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Patent number D909421
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Issue date Feb 2, 2021
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OMS Investments, Inc.
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Paul E. Hsu
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D15 - Machines not elsewhere specified
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Spreader
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Patent number D860261
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Issue date Sep 17, 2019
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OMS Investments, Inc.
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Paul E. Hsu
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D15 - Machines not elsewhere specified