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Patents Grantslast 30 patents

Information Patent Grant
Method for setting coloring ring back tone
- Patent number 8,331,914
- Issue date Dec 11, 2012
- Sony Ericsson Mobile Communications AB
- Aihua Qian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR SETTING COLORING RING BACK TONE
- Publication number 20110201316
- Publication date Aug 18, 2011
- Sony Ericsson Mobile Communications AB
- Aihua QIAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE