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Multiple transponder seal device

  • US 7,270,353 B2
  • Filed: 02/16/2004
  • Issued: 09/18/2007
  • Est. Priority Date: 02/24/2003
  • Status: Expired due to Fees
First Claim
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1. A seal device, comprising a locking pin and a sleeve, said locking pin comprising a head and a stem comprising means to lock said sleeve onto the pin wherein said sleeve also comprises a first transponder housed in the upper portion of said sleeve at a depth P that is greater than a height H of said stem and in that said locking pin also comprises a second transponder disposed on the outer periphery of said stem, each transponder comprising a substrate on which are formed an electronic circuit and an antenna, said electronic circuit comprising storage means for storing at least one unique identification code,wherein said second transponder is configured and disposed in such a way as to cause rupture of the electronic circuit or the antenna of the second transponder when an attempt is made to open the seal device.

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