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Retracting internal tube cutter
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Patent number 4,577,406
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Issue date Mar 25, 1986
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Elliott Turbomachinery Co., Inc.
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Joseph J. Idzik
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Tube cutter
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Patent number 4,455,746
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Issue date Jun 26, 1984
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Elliott Turbomachinery Company, Inc.
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Joseph J. Idzik
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Tube cleaning device
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Patent number 4,178,649
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Issue date Dec 18, 1979
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Carrier Corporation
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Charles H. Kouse
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B08 - CLEANING