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Shenzhen, CN
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last 30 patents
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Patent Grant
Method and system for implementing roam restriction
Patent number
7,817,999
Issue date
Oct 19, 2010
Huawei Technologies Co., Ltd.
Xinhong Tang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 patents
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Patent Application
Method and system for implementing roam restriction
Publication number
20070060122
Publication date
Mar 15, 2007
Huawei Technologies Co., Ltd.
Xinhong Tang
H04 - ELECTRIC COMMUNICATION TECHNIQUE