Methods and apparatus to verify the identity of a cellular mobile phone | Patent Number 05457737

US 05457737 NA
Application Number8174569
Publication Number-
Pendency1 year, 9 months, 16 days
Filled DateDec 28, 1993
Priority DateDec 28, 1993
Publication Date-
Expiration DateOct 10, 1999
Inventor/Applicants Jack C. Wen
ExaminesTROST IV, WILLIAM GEORGE
Art Unit2608
Technology Center2600
Assignments
At&t Company
Current
At&t ServicesAt&t Company
Original
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