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| Number | Title | Issue Date |
| 7097400 | Tool and method for the finishing of valve seats and guides It is proposed to provide a tool for the final machining of a valve seat and valve guide in a cylinder block of a combustion engine of a motor vehicle, said tool having a first section with at least one first blade for machining the valve seat and a second section w... | 08/29/2006 |
| 6033159 | Material-removing precision machining tool A reamer for material-removing finishing machining of drilled surfaces in workpieces made of metal. The reamer has a blade insert and two guide bars associated with the blade insert. The first guide bar trails the blade insert, as seen in the direction of... | 03/07/2000 |
