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2678587
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Patent number 2,678,587
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Issue date May 18, 1954
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2638036
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Patent number 2,638,036
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Issue date May 12, 1953
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2361599
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Patent number 2,361,599
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Issue date Oct 31, 1944
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2136269
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Patent number 2,136,269
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Issue date Nov 8, 1938
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1796462
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Patent number 1,796,462
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Issue date Mar 17, 1931
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1731421
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Patent number 1,731,421
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Issue date Oct 15, 1929
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR