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Roger P. Sylvester

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  • Unionville, CT, US
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Patents Applicationslast 30 patents

  • Information Patent Application

    SECURITY BARRIER SYSTEM
    • Publication number 20160247372
    • Publication date Aug 25, 2016
    • Roger P. Sylvester
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    SECURITY BARRIER SYSTEM
    • Publication number 20150075073
    • Publication date Mar 19, 2015
    • ENSIGN-BICKFORD INDUSTRIES, INC.
    • Roger P. Sylvester
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES