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Issue date Mar 10, 1970
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent number 3,266,351
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Issue date Aug 16, 1966
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent number 3,234,831
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Issue date Feb 15, 1966
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3163065
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Patent number 3,163,065
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Issue date Dec 29, 1964
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR