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Apparatus, system and method for monitoring a location of a portable device

  • US 20040183674A1
  • Filed: 01/30/2004
  • Published: 09/23/2004
  • Est. Priority Date: 01/31/2003
  • Status: Abandoned Application
First Claim
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1. A position monitoring device configured to determine if a global position of a monitored device is within a criteria region defined within a global position coordinate system.

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