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Gear cutting tool
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Patent number 5,205,678
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Issue date Apr 27, 1993
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Bucyrus-Erie Company
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Heinz G. Britsch
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Tool device
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Patent number 5,031,491
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Issue date Jul 16, 1991
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Maag Gear-Wheel & Machine Company Limited
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Heinz-Wilhelm Hofmann
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3688365
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Patent number 3,688,365
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Issue date Sep 5, 1972
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3631736
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Patent number 3,631,736
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Issue date Jan 4, 1972
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3354525
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Patent number 3,354,525
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Issue date Nov 28, 1967
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2255094
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Patent number 2,255,094
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Issue date Sep 9, 1941
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1512543
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Patent number 1,512,543
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Issue date Oct 21, 1924
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1480610
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Patent number 1,480,610
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Issue date Jan 15, 1924
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1409766
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Patent number 1,409,766
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Issue date Mar 14, 1922
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR