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CHUNGCHEONGNAM-DO, KR

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Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for warning telephony users of service degrada...
- Publication number 20080112329
- Publication date May 15, 2008
- ATT Corp.
- Simon Byers
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR NETWORK LAYER RESTORATION USING SPARE INTERFACES CONNECT...
- Publication number 20040107382
- Publication date Jun 3, 2004
- ATT CORP.
- Robert Duncan Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE