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Involute gear cutter
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Patent number 4,750,848
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Issue date Jun 14, 1988
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Harold Adler
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Gear shaping machine
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Patent number 4,606,682
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Issue date Aug 19, 1986
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John R. Miller
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3164061
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Patent number 3,164,061
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Issue date Jan 5, 1965
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2775921
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Patent number 2,775,921
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Issue date Jan 1, 1957
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2736239
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Patent number 2,736,239
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Issue date Feb 28, 1956
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2665612
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Patent number 2,665,612
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Issue date Jan 12, 1954
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2659277
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Patent number 2,659,277
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Issue date Nov 17, 1953
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2622484
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Patent number 2,622,484
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Issue date Dec 23, 1952
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2578187
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Patent number 2,578,187
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Issue date Dec 11, 1951
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2567273
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Patent number 2,567,273
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Issue date Sep 11, 1951
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2479287
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Patent number 2,479,287
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Issue date Aug 16, 1949
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2473233
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Patent number 2,473,233
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Issue date Jun 14, 1949
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2344323
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Patent number 2,344,323
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Issue date Mar 14, 1944
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2228965
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Patent number 2,228,965
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Issue date Jan 14, 1941
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2165386
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Patent number 2,165,386
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Issue date Jul 11, 1939
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2139290
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Patent number 2,139,290
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Issue date Dec 6, 1938
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2126178
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Patent number 2,126,178
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Issue date Aug 9, 1938
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2122803
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Patent number 2,122,803
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Issue date Jul 5, 1938
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2118453
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Patent number 2,118,453
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Issue date May 24, 1938
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1737217
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Patent number 1,737,217
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Issue date Nov 26, 1929
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1712256
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Patent number 1,712,256
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Issue date May 7, 1929
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1545070
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Patent number 1,545,070
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Issue date Jul 7, 1925
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR