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Abrasive surfacing machine
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Patent number 4,704,823
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Issue date Nov 10, 1987
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Acrometal Products, Inc.
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Clarence I. Steinback
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B24 - GRINDING POLISHING
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Abrasive grinding machine
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Patent number 4,399,637
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Issue date Aug 23, 1983
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Acrometal Products, Inc.
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Clarence I. Steinback
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B24 - GRINDING POLISHING
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Abrasive grinding machine
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Patent number 4,322,918
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Issue date Apr 6, 1982
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Acrometal Products, Inc.
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Clarence I. Steinback
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B24 - GRINDING POLISHING