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System for dispensing liquids

  • US 7,252,715 B2
  • Filed: 06/15/2004
  • Issued: 08/07/2007
  • Est. Priority Date: 07/09/2002
  • Status: Expired due to Term
First Claim
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1. A system for dispensing a liquid onto a substrate, said system comprising:

  • a source of said liquid;

    a control system to selectively authorize dispensing of said liquid from said source upon verifying said liquid contains characteristics matching characteristics of liquids previously dispensed from said source, wherein said source further includes data concerning characteristics of said liquid, defining verifiable characteristics data, with said control system further including an authorization station to generate an authorization code in response to verifying that said verifiable characteristic data matches historical data stored by said authorization station, with said historical data including information concerning characteristics of liquids previously associated with said system.

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