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3103143
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Patent number 3,103,143
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Issue date Sep 10, 1963
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2662265
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Patent number 2,662,265
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Issue date Dec 15, 1953
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2364947
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Patent number 2,364,947
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Issue date Dec 12, 1944
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2207438
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Patent number 2,207,438
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Issue date Jul 9, 1940
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2137146
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Patent number 2,137,146
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Issue date Nov 15, 1938
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR