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Patent number 2,030,481
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Issue date Feb 11, 1936
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1968863
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Patent number 1,968,863
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Issue date Aug 7, 1934
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1940139
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Patent number 1,940,139
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Issue date Dec 19, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1870054
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Patent number 1,870,054
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Issue date Aug 2, 1932
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1812649
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Patent number 1,812,649
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Issue date Jun 30, 1931
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1678048
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Patent number 1,678,048
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Issue date Jul 24, 1928
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1653846
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Patent number 1,653,846
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Issue date Dec 27, 1927
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1464266
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Patent number 1,464,266
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Issue date Aug 7, 1923
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1453470
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Patent number 1,453,470
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Issue date May 1, 1923
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR