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Drill bit for wood drilling
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Patent number 6,428,250
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Issue date Aug 6, 2002
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Karl-Heinz Giebmanns
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Grinding machine
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Patent number 5,738,572
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Issue date Apr 14, 1998
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Karl-Heinz Giebmanns
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Grinding machine
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Patent number 4,991,358
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Issue date Feb 12, 1991
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International Tool Machines, Inc.
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Karl H. Giebmanns
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Grinding machine
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Patent number 4,524,545
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Issue date Jun 25, 1985
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ITM International Tool Machines Inc.
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Karl-Heinz Giebmanns
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B24 - GRINDING POLISHING
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Grinding machine
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Patent number 4,468,892
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Issue date Sep 4, 1984
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ITM International Tool Machines, Inc.
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Karl H. Giebmanns
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B24 - GRINDING POLISHING
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Clamping arrangement
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Patent number 4,454,689
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Issue date Jun 19, 1984
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ITM International Tool Machines, Inc.
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Karl-Heinz Giebmanns
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR