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Apparatus for punching steel studs
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Patent number 6,367,362
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Issue date Apr 9, 2002
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Ryobi North America, Inc.
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Kenneth M. Brazell
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Orbital tool
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Patent number 6,306,024
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Issue date Oct 23, 2001
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One World Technologies, Inc.
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Nobuto Kai
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B24 - GRINDING POLISHING
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Orbital tool
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Patent number 6,062,960
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Issue date May 16, 2000
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Ryobi North America, Inc.
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Nobuto Kai
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B24 - GRINDING POLISHING
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