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| Number | Title | Issue Date |
| 7517178 | Rotary cutter head A rotary cutter head includes a rotary body, resilient clamping arm, and at least one cutting blade. The clamping arm clamps the cutting blade radially inwardly first rather than in a circumferential direction in order to positively lock the cutting blade radially, ... | 04/14/2009 |
| 7390151 | Helical cutter head and helical cutting blade for use therewith A rotary cutter head is provided with helical carbide cutting blade inserts. The blade inserts extend along a helical path and are configured for cutting rotation in a predetermined direction. The blade inserts are secured to the cutter head body in a helical slot f... | 06/24/2008 |
| 7040843 | Flooring hollow back relief cutting tool and method An indexable cutting insert, a tool using a plurality of such inserts, and a method of forming flat bottomed grooves in the backs of flooring planks. The tool is arranged to accept indexable inserts, and the indexable inserts are specially arranged such that each in... | 05/09/2006 |
