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Inventor
THABIT MARK JOSEPH
US
2 patents
Patents
2 patents
US7110512B2
Sep 19, 2006
Method and apparatus for providing prepaid local telephone services
SBC PROPERTIES LP
16 citations
87
US7092501B2
Aug 15, 2006
Method and apparatus for providing prepaid local telephone services
SBC PROPERTIES LP
8 citations
68