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Positioning unit

  • US 20040222969A1
  • Filed: 04/15/2003
  • Published: 11/11/2004
  • Est. Priority Date: 05/24/2000
  • Status: Abandoned Application
First Claim
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1. A positioning unit for movement of an object on a presentation area, characterized in that the positioning unit has means for detecting a rolling movement and an orientation of the positioning unit.

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