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Steel grit dryer
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Patent number 12,186,859
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Issue date Jan 7, 2025
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Ronald C. Benson
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B24 - GRINDING POLISHING
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Steel grit dryer
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Patent number 11,931,865
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Issue date Mar 19, 2024
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Roto Grit, LLC
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Ronald Benson
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B22 - CASTING POWDER METALLURGY
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Steel grit dryer
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Patent number 11,187,459
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Issue date Nov 30, 2021
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Roto Grit, LLC
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Ronald C. Benson
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B24 - GRINDING POLISHING