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| Number | Title | Issue Date |
| 7367874 | Mandrel for working disks A mandrel or a clamping element for working disks, for example, separating disks, grinding disks and/or polishing disks, contains a shaft to fix the mandrel to a receiving element or to a clamping element of a working machine. The mandrel has a fixing element for de... | 05/06/2008 |
