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Sheet, display medium unit, sheet attaching device, and sheet detaching device

  • US 20060209354A1
  • Filed: 08/18/2005
  • Published: 09/21/2006
  • Est. Priority Date: 03/16/2005
  • Status: Active Grant
First Claim
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1. A sheet with a plurality of wireless measuring units, each of which, when a radio signal is sent, measures physical quantity surrounding itself by using the radio signal as an energy source, and generates and sends a radio signal having an attribute reflecting the measured physical quantity.

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