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High-speed drilling or milling spindle
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Patent number 5,193,953
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Issue date Mar 16, 1993
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Fortuna-Werke Maschinenfabrik GmbH
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Richard Jesinger
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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 4,934,106
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Issue date Jun 19, 1990
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Fortuna-Werke Maschinenfabrik GmbH
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Herbert Setzer
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B24 - GRINDING POLISHING
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Grinding wheel
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Patent number 4,907,375
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Issue date Mar 13, 1990
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Fortuna-Werke Maschinenfabrik GmbH
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Gunter Weinich
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B24 - GRINDING POLISHING
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Spindle of a machine tool
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Patent number 4,746,252
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Issue date May 24, 1988
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Fortuna-Werke Maschinenfabrik GmbH
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Richard Jesinger
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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