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Rotary material removing tool
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Patent number 4,511,294
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Issue date Apr 16, 1985
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Stellram GmbH
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Manfred Grunsky
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Rotary material removing tool
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Patent number 4,493,596
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Issue date Jan 15, 1985
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Stellram S.A.
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Manfred Grunsky
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Spade drill blade
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Patent number 4,115,024
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Issue date Sep 19, 1978
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Amtel, Inc.
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Reiner W. Sussmuth
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR